INSTRUCTION MANUAL
DIGITAL MIXER
D-901
(Version 3)
Thank you for purchasing TOA's Digital Mixer.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
Traceability Information for Europe (EMC directive 2004/108/EC)
Manufacturer:
TOA Corporation
7-2-1, Minatojima Nakamachi, Chuo-ku, Kobe, Hyogo,
Japan
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg,
Germany
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8.6.2. Input trim polarity settings ...................................................................... 28
8.7. High-Pass Filter Settings
8.7.1. Cutoff frequency settings ....................................................................... 29
8.7.2. Q settings ............................................................................................... 29
8.8. Equalizer Settings
8.8.1. Gain settings .......................................................................................... 30
8.8.2. Center frequency settings ...................................................................... 30
8.8.3. Q settings ............................................................................................... 30
8.9. Compressor/Auto-Leveler Mode Selection ...................................................... 31
8.10. Compressor Settings
(only when the compressor mode is selected in Section 8.9.)
8.10.1. Threshold level settings ....................................................................... 31
8.10.2. Ratio settings ....................................................................................... 32
8.10.3. Attack time settings .............................................................................. 32
8.10.4. Release time settings ........................................................................... 32
8.10.5. Makeup gain settings ........................................................................... 32
8.11. Auto-Leveler Settings
(only when the auto-leveler mode is selected in Section 8.9.)
8.11.1. Target level settings ............................................................................. 33
8.11.2. Maximum gain settings ........................................................................ 33
8.11.3. Attack time settings .............................................................................. 33
8.11.4. Release time settings ........................................................................... 34
8.12. Level Sense Settings
8.12.1. Attack time settings .............................................................................. 34
8.12.2. Release time settings ........................................................................... 34
8.13. Gate Settings
8.13.1. Threshold level settings ....................................................................... 35
8.13.2. Hysteresis settings ............................................................................... 35
8.13.3. Depth settings ...................................................................................... 35
8.13.4. Hold time settings ................................................................................ 35
8.13.5. Attack time settings .............................................................................. 35
8.13.6. Release time settings ........................................................................... 35
8.14. Auto-Mixing Group Settings ............................................................................. 37
8.15. Ducker Settings
8.15.1. Priority settings .................................................................................... 38
8.15.2. Attenuation settings ............................................................................. 38
8.15.3. Attack time settings .............................................................................. 39
8.15.4. Release time settings ........................................................................... 39
8.16. NOM Attenuation ON/OFF Settings ................................................................. 39
8.17. Input Channel Gain Settings ............................................................................ 40
8.18. Input Channel Group Trim Gain Settings (Only when Group is set) ................ 40
8.19. Bus Assignment and Crosspoint Gain Settings
8.19.1. Bus assignment settings ...................................................................... 41
8.19.2. Crosspoint gain settings ....................................................................... 41
9. OUTPUT SETTINGS
9.1. Output Channel Gain Settings ......................................................................... 42
9.2. Output Channel Group Trim Gain Settings (Only when Group is set) ............. 42
9.3. Crossover Settings (Only when Crossover function is enabled)
9.3.1. Slope settings ........................................................................................ 43
9.3.2. Cutoff frequency settings ....................................................................... 44
9.3.3. Q settings ............................................................................................... 44
9.3.4. Q2 settings ............................................................................................. 44
9.3.5. Crossover gain settings ......................................................................... 44
9.3.6. Crossover filter polarity settings ............................................................. 44
9.4. Filter Settings ................................................................................................... 45
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9.4.1. Parametric equalizer .............................................................................. 47
9.4.2. High-pass filter ....................................................................................... 47
9.4.3. Low-pass filter ........................................................................................ 48
9.4.4. High shelving filter .................................................................................. 48
9.4.5. Low shelving filter .................................................................................. 48
9.4.6. Horn equalizer ........................................................................................ 49
9.4.7. Notch filter .............................................................................................. 49
9.4.8. All-pass filter .......................................................................................... 49
9.5. Compressor Settings
9.5.1. Threshold level settings ......................................................................... 50
9.5.2. Ratio settings ......................................................................................... 50
9.5.3. Attack time settings ................................................................................ 51
9.5.4. Release time settings ............................................................................. 51
9.5.5. Makeup gain settings ............................................................................. 51
9.6. Delay Time Settings ......................................................................................... 51
10. MICROPHONE BUS SETTINGS
10.1. Feedback Suppression Settings
10.1.1. Dynamic mode settings ...................................................................... 52
10.1.2. Auto mode activation ......................................................................... 53
10.1.3. Filter number settings ........................................................................ 53
10.1.4. Dynamic mode filter initialization ........................................................ 53
10.1.5. Auto mode filter initialization .............................................................. 53
10.2. Feedback Suppression Filter Setting Confirmation
10.2.1. Mode confirmation ............................................................................. 54
10.2.2. Frequency confirmation ..................................................................... 54
10.2.3. Filter gain confirmation ....................................................................... 54
10.2.4. Q confirmation .................................................................................... 54
10.3. Effect (Echo) Settings
10.3.1. Echo gain settings .............................................................................. 55
10.3.2. Feedback ratio settings ...................................................................... 55
10.3.3. Feedback delay settings .................................................................... 55
10.3.4. Initial echo (pre-) delay settings ......................................................... 56
10.3.5. Low-pass filter frequency settings ...................................................... 56
10.3.6. Low-pass filter Q settings ................................................................... 56
10.4. Bus Assignment and Crosspoint Gain Settings
→
(Microphone Bus
Output Channel)
10.4.1. Bus assignment settings .................................................................... 56
10.4.2. Crosspoint gain settings ..................................................................... 56
11. PRESET MEMORY SETTINGS
11.1. Preset Memory Save ..................................................................................... 57
11.2. Preset Memory Recall .................................................................................... 58
11.3. Preset Memory Delete ................................................................................... 58
11.4. Preset Memory Crossfade Time Settings ...................................................... 59
11.5. Initial Preset Memory Selection ..................................................................... 60
11.6. Configuration Save ........................................................................................ 60
12. UTILITY SETTINGS
12.1. Stereo Link Settings ....................................................................................... 61
12.2. Group Settings ............................................................................................... 61
12.3. Crossover Configuration Settings .................................................................. 62
12.4. NOM Attenuation Settings ............................................................................. 64
12.5. Contact Input/Output Settings
(Available only when D-981, D-983 or D-984VC is used)
12.5.1. Function assignment to the input contact .......................................... 65
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12.5.2. Function assignment to the output contact ........................................ 67
12.6. Protect Settings .............................................................................................. 68
12.7. RS-232C Port Settings
12.7.1. Control mode selection ...................................................................... 70
12.7.2. RS-232C transmission rate settings .................................................. 70
12.8. All Input/Output Channel Gain Confirmation .................................................. 71
12.9. All Input/Output VCA Status Confirmation
(Only when the D-984VC is used) ................................................................. 71
12.10. Module Type Confirmation
12.10.1. Individual slots confirmation ............................................................. 72
12.10.2. All slots confirmation ........................................................................ 73
12.11. Cooling Fan Operating Status Confirmation .................................................. 73
12.12. Firmware Version Confirmation ..................................................................... 73
13. RESTORING FACTORY DEFAULT SETTINGS ..................................... 74
14. FIRMWARE UPDATE ...................................................................................... 74
15. RACK MOUNTING ........................................................................................... 76
16. CONNECTIONS
16.1. Connection Example 1 ................................................................................... 77
16.2. Connection Example 2 (Broadcasting to two separate zones) ...................... 77
16.3. Removable Terminal Plug Connection .......................................................... 79
16.4. Ferrite Cable Clamp Attachment (For D-972AE only) .................................... 79
16.5. Connections of the D-984VC
16.5.1. Connecting to the D-984VC ............................................................... 80
16.5.2. Input and output channel VCA controls ............................................. 80
16.5.3. Contact controls ................................................................................. 81
17. BLOCK DIAGRAM ........................................................................................... 82
18. LEVEL DIAGRAMS
18.1. Analog Input/Output ....................................................................................... 84
18.2. Digital Input/Output ........................................................................................ 84
19. PARAMETER SETTING ITEMS AND SETTING RANGES ................ 85
20. SPECIFICATIONS
20.1. D-901 Digital Mixer ........................................................................................ 89
20.2. D-921F Microphone/Line Input Module (Optional) ......................................... 90
20.3. D-921E Microphone/Line Input Module (Optional) ......................................... 90
20.4. D-922F Microphone/Line Input Module (Optional) ......................................... 90
20.5. D-922E Microphone/Line Input Module (Optional) ......................................... 91
20.6. D-936R Stereo Input Module (Optional) ........................................................ 91
20.7. D-923AE Digital Input Module (Optional) ....................................................... 91
20.8. D-937SP Digital Input Module (Optional) ....................................................... 91
20.9. D-971M Line Output Module (Optional) ......................................................... 92
20.10. D-971E Line Output Module (Optional) .......................................................... 92
20.11. D-971R Line Output Module (Optional) ......................................................... 92
20.12. D-972AE Digital Output Module (Optional) .................................................... 92
20.13. D-961SP Digital Output Module (Optional) .................................................... 93
20.14. D-981 Remote Control Module (Optional) ..................................................... 93
20.15. D-983 Remote Control Module (Optional) ..................................................... 94
20.16. D-984VC VCA Control Module (Optional) ...................................................... 94
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1. SAFETY PRECAUTIONS
• Be sure to read the instructions in this section carefully before use.
• Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.
• We also recommend you keep this instruction manual handy for future reference.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
WARNING
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
CAUTION
WARNING
CAUTION
When Installing the Unit
When Installing the Unit
• Do not expose the unit to rain or an environment
where it may be splashed by water or other liquids,
as doing so may result in fire or electric shock.
• Never plug in nor remove the power supply plug
with wet hands, as doing so may cause electric
shock.
• Use the unit only with the voltage specified on the
unit. Using a voltage higher than that which is
specified may result in fire or electric shock.
• When unplugging the power supply cord, be sure
to grasp the power supply plug; never pull on the
cord itself. Operating the unit with a damaged
power supply cord may cause a fire or electric
shock.
• Do not cut, kink, otherwise damage nor modify the
power supply cord. In addition, avoid using the
power cord in close proximity to heaters, and never
place heavy objects -- including the unit itself -- on
the power cord, as doing so may result in fire or
electric shock.
• Do not block the fan exhaust vent on the unit's rear
and the ventilation slots on the bottom. Doing so
may cause heat to build up inside the unit and
result in fire.
• Avoid installing the unit in humid or dusty locations,
in locations exposed to the direct sunlight, near the
heaters, or in locations generating sooty smoke or
steam as doing otherwise may result in fire or
electric shock.
When the Unit is in Use
• Should the following irregularity be found during
use, immediately switch off the power, disconnect
the power supply plug from the AC outlet and
contact your nearest TOA dealer. Make no further
attempt to operate the unit in this condition as this
may cause fire or electric shock.
· If you detect smoke or a strange smell coming
from the unit.
· If water or any metallic object gets into the unit
· If the unit falls, or the unit case breaks
· If the power supply cord is damaged (exposure of
the core, disconnection, etc.)
• When installing the unit in an equipment rack,
observe the following instructions. Failure to do so
may result in fire or personal injury.
· Install the rack on a solid and stable surface.
Then, secure it with anchor bolts or make other
appropriate arrangements to prevent it from
falling down or moving.
· Use the screws supplied with the unit to mount on
TOA's rack.
· The AC outlet to which the unit's AC power cable
is connected must have allowable current
capacity over the unit's current consumption.
· If it is malfunctioning (no tone sounds.)
• To prevent a fire or electric shock, never open nor
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
your nearest TOA dealer.
When the Unit is in Use
• Do not place cups, bowls, or other containers of
liquid or metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock.
• Switch off the power, and unplug the power supply
plug from the AC outlet for safety purposes when
cleaning or leaving the unit unused for 10 days or
more. Doing otherwise may cause a fire or electric
shock.
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2. GENERAL DESCRIPTION
TOA's D-901 is a 19-inch rack-mounted (3U high) digital mixer configured with 12 inputs, 8 buses, and 8
outputs. It features signal processing functions necessary for sound systems such as feedback suppression
and auto-mixing. All functional parameters can be set at the unit*. Settings can be stored in the unit's internal
memory as "preset memory" and can be recalled using the front panel-mounted operation keys.
* Can also be set at a PC using the setting software, which can be downloaded from our website
"http://www.toa-products.com/international/".
3. FEATURES
• Acoustic feedback can be suppressed through simple operation.
• Auto-Mixing functions (Ducker*1 and NOM Attenuation*2) automatically adjust the input signal volume.
• Signals are digitally processed, ensuring high-accuracy sound parameter settings.
• All settings can be performed at the unit using the LCD screen and setting keys and knobs located on the
front panel. The settings can also be made at a PC using the dedicated software.
• Modular construction permits flexible configuration of inputs and outputs, from 2-IN/4-OUT to 12-IN/8-OUT
systems.
• Up to 16 preset patterns can be stored in memory, which can be easily recalled from either the unit or
connected external equipment.
• An RS-232C port permits remote control of the unit using an AMX or Crestron controller, or similar external
products.com/international/.
• A protect function prevents accidental changes of front panel key settings.
• The use of an optional D-981 or D-983 Remote Control Module, or an optional D-984VC VCA Control
Module permits easy remote operation of volume control and preset memory recall.
• The use of an optional D-984VC VCA Control Module permits the sound volume to be adjusted from remote
locations using the faders or volume controls.
*1 Automatically adjusts all channel gains in response to input signal level. (Refer to p. 38.)
*2 Automatically adjusts the input gain of open microphones corresponding to the number of open
microphones in the system. (Refer to p. 39.)
Notes
• AMX is a trademark of AMX Corporation.
• Crestron is a trademark of Crestron Electronics, Inc.
4. HANDLING PRECAUTIONS
• Warning: This is a class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
• Note: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be required
to correct the interference at his own expense.
• Use the unit in locations where the temperature is between +5 to +40 °C (no condensation) and the humidity
is less than 90%.
• The D-901 is a precision audio component. To prevent failure, avoid locations where the unit may be
exposed to strong shocks or vibrations.
• Do not place combustible material under the unit.
• To clean, be sure to first switch off the power, then wipe with a dry cloth. When extremely dirty, use a soft
cloth dampened in neutral detergent. Never use benzene, thinner or chemically-treated towels, which may
damage the unit's finish.
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5. NOMENCLATURE AND FUNCTIONS
5.1. D-901 Digital Mixer
[Front]
Output channel
control section
Parameter input section
(described below)
Input channel control section
(Refer to p. 9.)
1
2
(Refer to p. 10.)
DIGITAL MIXER model D-901
PEAK
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
+12dB
+6dB
0dB
8
9
CHANGE
-6dB
10
11
12
UTILITY
PRESET
PARAMETER
-12dB
-20dB
-40dB
POWER
LOCK
SEL
ON
SEL SIG
0N
0N
SIG SEL
ON
OFF
PUSH-ENTER
ENTRY SECTION
FBS
0N
SIG SEL
1
2
3
4
5
6
7
8
ON
EFFECT
ON
INPUT
MIC BUS
OUTPUT
PRESET
Preset memory selection section
(Refer to p. 9.)
Microphone bus control section
(Refer to p. 10.)
1. Power switch [POWER,
]
OFF
2. Power Indicator
ON/
The unit's power switches ON when this switch is
Lights when the power is switched ON.
pressed, and switches OFF when pressed again.
Parameter Input Section
p. 68.)
3 4
5
6
7
Flashes when the D-901 is communicating with a
PC.
7. Setting Knob [CHANGE PARAMETER, PUSH-
ENTER]
CHANGE
PARAMETER
UTILITY
This knob can be rotated to change parameters
or select setting contents, and also operates as a
push switch. Pressing the knob when the [OK?]
indication is displayed on the LCD screen (5)
enables the corresponding function.
LOCK
ON
PRESET
PUSH-ENTER
8. Preset Indicator
8 9
10
11 12
Remains lit during preset memory selection.
3. Utility Indicator
Remains lit during selection of the utility function.
9. Preset Key [PRESET]
Recalls the settings stored in preset memory or
saves the current parameters. The preset
memory setting screen appears on the LCD (5)
when this key is pressed. (Refer to p. 59.)
4. Utility Key [UTILITY]
Selects the utility function. Pressing this key
displays the utility function setting screen on the
LCD screen (5). (Refer to p. 61.)
10. Screen Shift Keys [
]
5. LCD Screen
Pressing these keys change the setting items on
When the function key is pressed, its
corresponding setting screen is displayed on this
screen. If the unit's internal cooling fan
malfunctions, the "ERROR indication appears on
the screen even during setting operation. In this
case, contact your TOA dealer.
the LCD (5).
11. Function ON/OFF Indicator
Lights when the parameter shown on the LCD (5)
is enabled (ON).
12. Function ON/OFF Key [ON]
6. System Lock Indicator [LOCK]
Parameters displayed on the LCD (5) are
enabled (ON) when this key is pressed, and
disabled (OFF) when pressed again.
Lights when the protect function is enabled. (For
more information on the protect function, refer to
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Preset Memory Selection Section
13. Preset Memory Selector Keys [1 – 8]
Recall preset memory patterns 1 – 8. To recall,
press the desired Preset Memory Selector key,
then press the Setting knob (7).
13
1
2
3
4
5
6
7
8
14. Preset Memory Indicators
The LED corresponding to the currently selected
Preset Memory Selection key is illuminated.
PRESET
14
Input Channel Control Section
Green: Signal level is between –40 dB and
+17 dB on the basis of the rated input
signal level.
15
OFF: Signal level is lower than –40 dB
below the rated input signal level.
1
2
3
4
5
6
7
8
LED
Red
Input signal level
9
10
11
12
+17 dB
Rated input signal level
Green
OFF
–40 dB
SEL SIG
0N
0N
SIG SEL
Notes
ON
· The indicator lights red when the signal level
is set too high. In such cases, decrease the
output level of connected equipment so that
the indicator lights green.
INPUT
· Only when the D-923AE or the D-937SP
Digital input module is used, the input channel
indicator flashes red if a status error occurs.
16
17
18 19
15. Input Channel Selector Keys [1 – 12]
Used to select the input channel for sound
volume adjustment or parameter setting. The
Input channel indicator [SEL] (16) lights when a
key is pressed, causing the corresponding
channel number to be displayed on the setting
screen.
• ON: Lights when the channel is selected and
active.
17. Input Volume Control [INPUT]
Adjusts the gain of the input channel selected
with the Input Channel Selector keys (15).
18. Input Channel ON/OFF Key [ON]
Enables or disables the channel selected with the
Input Channel Selector keys (15).
16. Input Channel Indicators [SEL, SIG, ON]
• SEL: Lights when the input channel is selected.
• SIG
Indicates the input signal level in two colors (red
and green). The status of indicator shows as
follows depending on the input signal levels.
Red: Signal level is 17 dB or more above
the rated input signal level.
19. Input Channel ON/OFF Indicator
Lights continuously to indicate that the input
channel selected with the Input Channel Selector
keys (15) is enabled (ON).
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Microphone Bus Control Section
Microphone bus indicator (21) to light, and allows
feedback suppression (p. 54), effect (echo) (p.
55), and bus assignment (p. 56) to be set on the
LCD screen.
21. Microphone Bus Indicator
Remains lit while the microphone bus is selected.
SEL
22. Feedback Suppression Indicator [FBS]
Remains lit while the feedback suppression
function is enabled.
20
21
FBS
23. Effect Key [EFFECT]
22
The effect (echo) function is enabled when this
key is pressed, and the effect (echo) parameters
are displayed on the LCD screen, allowing
settings to be changed. Pressing the key again
disables the effect (echo) function. (Refer to p.
55.)
EFFECT
23
24
MIC BUS
20. Microphone Bus Selector Key [SEL]
24. Effect Indicator
Used to set the microphone bus parameters or
adjust the volume. Pressing this key causes the
Remains lit while the effect (echo) function is
enabled.
Output Channel Control Section
LED
Red
Output signal level
+17 dB
PEAK
1
2
+12dB
+6dB
Rated output signal level
Green
OFF
3
0dB
–40 dB
25
-6dB
4
-12dB
28
5
-20dB
-40dB
6
Note
The indicator lights red when the signal level is
set too high. In such cases, attenuate the unit's
output level so that the indicator lights green.
7
26
8
0N
SIG SEL
• SEL: Lights when the output channel is
29
30
ON
selected.
27
27. Output Volume Control [OUTPUT]
Adjusts the gain of the output channel selected
OUTPUT
with the Output Channel Selector keys (28).
25. Output Signal Level Meter
Indicates the signal level of the channel selected
with the Output Channel Selector keys (28).
28. Output Channel Selector Keys [1 – 8]
Used to select the output channel for sound
volume adjustment, parameter setting or Level
meter indication (25). The Output Channel
indicator [SEL] (26) lights when the key is
pressed, permitting parameter setting, volume
adjustment with the Output volume control (27) or
Level meter (25) signal level indication.
26. Output Channel Indicators [ON, SIG, SEL]
• ON: Lights when the channel is active.
• SIG
Indicates the output signal level in two colors
(red and green). The status of indicator shows
as follows depending on the output signal
levels.
29. Output Channel ON/OFF Key [ON]
Enables or disables the channel selected with the
Output Channel Selector keys (28).
Red: Signal level is 17 dB or more above
the rated output signal level.
Green: Signal level is between –40 dB and
+17 dB on the basis of the rated
output signal level.
30. Output Channel ON/OFF Indicator
Lights continuously to indicate that the output
channel selected with the Output Channel
Selector keys (28) is enabled (ON).
OFF: Signal level is lower than –40 dB
below the rated output signal level.
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[Rear]
41
31
32
33
34
35
36
37
38
39
40
RS-232C
DIGITAL MIXER
model D-901
SIGNAL
GND
TOA Corporation
MADE IN JAPAN
Slot 9 Slot 8 Slot 7 Slot 6 Slot 5 Slot 4 Slot 3 Slot 2 Slot 1
Inputs 11 Inputs 9
Inputs
7 & 8
Inputs
5 & 6
Inputs
3 & 4
Inputs
1 & 2
Outputs
5 – 8
Outputs
1 – 4
42
& 12 or
Outputs
5 – 8
& 10 or
Outputs
1 – 4
Control module slot
Output module slot
Input module slot
Input & output module slot
31. Cooling Fan
37.Input/Output Module Slot
Slot for input channels 9 and 10. Inserting an
output module here provides output signals for
channels 1 – 4.
CAUTION
Do not block the fan exhaust vent. Doing so
may cause heat to build up inside the unit and
result in fire.
38. Input Module Slot
Slot for input channels 7 and 8.
32. RS-232C Communication Port
39. Input Module Slot
A communications connector for a personal
Slot for input channels 5 and 6.
computer (PC) or other control equipment.
40. Input Module Slot
33. Control Module Slot
Slot for input channels 3 and 4.
The control module's dedicated slot.
41. Input Module Slot
34. Output Module Slot
Slot for input channels 1 and 2.
Slot for output channels 5 – 8.
42. AC Inlet
35. Output Module Slot
Connect this inlet to the wall AC outlet using the
Slot for output channels 1 – 4.
supplied power cord.
36. Input/Output Module Slot
Slot for input channels 11 and 12. Inserting an
output module here provides output signals for
channels 5 – 8.
Note
Slots 5 – 8 accommodate only two D-971M and/or D-
971E Line Output Modules together or independently
in total.
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5.2. Optional Modules
Notes
• Make sure that the power is switched OFF before attaching or detaching modules.
• To avoid failures due to static electricity, do not touch the parts or terminals on the circuit board of both the
unit and module.
• Ensure that the module is installed and secured with screws in the correct position.
• Cover idle slots with the blank panels attached to the unit as shipped by the factory.
• Two silver slotted screws at the top and bottom of the front panel are handles used for module detachment.
Never rotate them because they do not function as screws.
Handle
1
GND LIFT
5.2.1. D-921F Microphone/Line Input Module
43. Monaural Input Terminal [1, 2] (XLR-3-31 equivalent)
Electronically-balanced input terminal. (Pin 1:
Ground; Pin 2: Hot; Pin 3: Cold)
43
1
Use XLR-3-12C or equivalent for connection.
Input sensitivity (–50/–36/–10/+4 dB) and
phantom power (+15 V) ON/OFF can be set by
way of the front panel setting screen.
2: Hot
GND LIFT
NORMAL
3: Cold
44
1: Ground
44. Ground Lift Switch [GND LIFT/NORMAL]
2
Hum noise may be generated due to ground loops created when the unit
is connected to other equipment. Setting the switch to the GND LIFT
position cuts the ground loop.
GND LIFT
NORMAL
1
2
3
: E
: H
: C
ACCESSORY I.T.E 78CK
5.2.2. D-921E Microphone/Line Input Module
45. Monaural Input Terminal [1, 2]
Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E:
Ground)
45
E
C
H
1
Input sensitivity (–50/–36/–10/+4 dB) and phantom power (+15 V)
ON/OFF can be set by way the front panel setting screen.
GND LIFT
NORMAL
46
46. Ground Lift Switch [GND LIFT/NORMAL]
Hum noise may be generated due to ground loops created when the unit
is connected to other equipment. Setting the switch to the GND LIFT
position cuts the ground loop.
E
C
H
2
GND LIFT
NORMAL
Note
Be sure to use the supplied removable terminal plugs (3P) for
connection.
ACCESSORY I.T.E 78CK
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5.2.3. D-922F Microphone/Line Input Module
47. Monaural Input Terminal [1, 2] (XLR-3-31 equivalent)
Electronically-balanced input terminal. (Pin 1:
Ground; Pin 2: Hot; Pin 3: Cold)
2: Hot
47
48
1
Use XLR-3-12C or equivalent for connection.
3: Cold
ON
NORMAL
MIC
OFF
LIFT
LINE
:
:
PHANTOM
GND
1: Ground
+4dB(LINE)
-36dB(MIC)
-10dB(LINE)
-50dB(MIC)
48. Input Sensitivity Switch [PHANTOM, GND LIFT, MIC/LINE]
2
4-pole switch. Enables phantom power (+15 V; ON/OFF, enabled only
when set to the MIC position), ground lift and input sensitivity.
Input sensitivity: –36 or –50 dB (MIC mode) / –10 or +4 dB (LINE mode)
ON
NORMAL
MIC
OFF
LIFT
LINE
:
:
PHANTOM
GND
+4dB(LINE)
-36dB(MIC)
-10dB(LINE)
-50dB(MIC)
1
2
3
: E
: H
: C
ON
NORMAL
MIC
OFF : PHANTOM
LIFT : GND
LINE
ACCESSORY I.T.E 78CK
+4dB(LINE)
-36dB(MIC)
-10dB(LINE)
-50dB(MIC)
5.2.4. D-922E Microphone/Line Input Module
49. Monaural Input Terminal [1, 2]
Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E:
Ground)
Note
Be sure to use the supplied removable terminal plugs (3P) for
connection.
49
50
E
C
H
1
ON
NORMAL
MIC
OFF
LIFT
LINE
:
:
PHANTOM
GND
+4dB(LINE)
-36dB(MIC)
-10dB(LINE)
-50dB(MIC)
50. Input Sensitivity Switch [PHANTOM, GND LIFT, MIC/LINE]
4-pole switch. Enables phantom power (+15V; ON/OFF, enabled only
when set to the MIC position), ground lift and input sensitivity.
E
C
H
2
ON
NORMAL
MIC
OFF
LIFT
LINE
:
:
PHANTOM
GND
Input sensitivity: –36 or –50 dB (MIC mode) / –10 or +4 dB (LINE mode)
+4dB(LINE)
-36dB(MIC)
-10dB(LINE)
-50dB(MIC)
ON
NORMAL
MIC
OFF : PHANTOM
LIFT : GND
LINE
ACCESSORY I.T.E 78CK
+4dB(LINE)
-36dB(MIC)
-10dB(LINE)
-50dB(MIC)
5.2.5. D-936R Stereo Input Module
51. Stereo Input Terminal [1L/1R, 2L/2R, 3L/3R, 4L/4R]
Unbalanced, RCA pin jack stereo input terminals. Either a single stereo
input can be selected from the 4 available stereo inputs or all 4 stereo
channels can be mixed.
1R
2R
3R
4R
1L
2L
3L
4L
51
Mode setting and stereo selection are performed at the front panel
setting screen. They can also be remotely selected by way of connected
external equipment through the use of the control module.
Input signal level: –10 dB
ACCESSORY I.T.E 78CK
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5.2.6. D-923AE Digital Input Module
5.2.8. D-971M Line Output Module
DIGITAL IN
55
1
2
3
4
52
1/2
AES/EBU
1
2
3
: E
: H
: C
ACCESSORY I.T.E 78CK
52. AES/EBU Digital Input Terminal [AES/EBU,
1/2]
55. Monaural Output Terminal [1, 2, 3, 4] (XLR-3-
32 equivalent)
(XLR-3-31 equivalent)
Electronically-balanced output terminal. (Pin 1:
Digital input terminal of AES/EBU format. (Pin 1:
Ground; Pin 2: Hot; Pin 3: Cold)
Ground; Pin 2: Signal; Pin 3: Signal)
2: Hot
2: Signal
3: Cold
3: Signal
1: Ground
1: Ground
Output signal level: +4dB
Use the XLR-3-12C or its equivalent for
connection.
Use XLR-3-11C or equivalent for connection.
Note
Use a digital audio cable with characteristic
impedance of 110 Ω for connection.
5.2.9. D-971E Line Output Module
5.2.7. D-937SP Digital Input Module
56
E
C
H
1
2
3
4
DIGITAL IN
E
C
H
OPTICAL
53
1
2
E
C
H
E
C
H
54
3
4
ACCESSORY I.T.E 78CK
COAXIAL
56. Monaural Output Terminal [1, 2, 3, 4]
Electronically-balanced, removable terminal
block. (H: Hot; C: Cold; E: Ground.)
Output signal level: +4 dB
53. Optical Input Terminal [OPTICAL, 1,2]
Optical input terminal of S/PDIF format.
Note
Be sure to use the supplied removable terminal
plugs (3P) for connection.
54. Coaxial Input Terminal [COAXIAL 3, 4]
Coaxial input terminal of S/PDIF format.
Notes
• Use a coaxial cable with characteristic
impedance of 75 Ω for connection.
• One of four line inputs (stereo) is selected. Input
selection is performed at the front panel-
mounted setting screen.
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5.2.10. D-971R Line Output Module
5.2.12. D-961SP Digital Output Module
DIGITAL OUT
OPTICAL
59
1
2(R)
1(L)
60
57
COAXIAL
OPTICAL
2
4(R)
3(L)
COAXIAL
ACCESSORY I.T.E 78CK
57. Monaural Output Terminals [1(L), 2(R), 3(L),
4(R)]
59. Optical Output Terminal [OPTICAL 1, 2]
Optical output terminal of S/PDIF format.
Unbalanced, RCA pin jack output terminals. Each
output is equipped with a 2-channel splitter.
Output signal level: –10 dB
60. Coaxial Output Terminal [COAXIAL 1, 2]
Coaxial input/output terminal of S/PDIF format.
Note
Use a coaxial cable with characteristic
impedance of 75 Ω for connection.
Each pair of the S/PDIF optical output and the
coaxial RCA pin jack output delivers output in
parallel.
5.2.11. D-972AE Digital Output Module
DIGITAL OUT
5.2.13. D-981 Remote Control Module
58
1/2
61
AES/EBU
C
1
2
3
4
INPUT
5
3/4
6
7
8
C
AES/EBU
62
C
1
2
3
4
OUTPUT
5
58. AES/EBU Digital Output Terminal [AES/EBU,
1/2] (XLR-3-32 or its equivalent)
6
7
8
C
Digital output terminal of AES/EBU format. (Pin
1: Ground; Pin 2: Signal; Pin 3: Signal)
ACCESSORY I.T.E 78CK
1: Ground
3: Signal
61. Contact Input Terminal [INPUT, C, 1, 2, 3, 4, 5,
6, 7, 8, C]
Removable terminal block, 8-circuit contact input
terminal. Individual contact functions are
assigned on the front panel setting screen.
Note
Be sure to use the supplied removable terminal
plugs (10P) for connection.
2: Signal
Use the XLR-3-11C or its equivalent for
connection.
Note
Use the digital audio cable with characteristic
impedance of 110 Ω for connection.
62. Contact Output Terminal [OUTPUT, C, 1, 2, 3,
4, 5, 6, 7, 8, C]
Removable terminal block, 8-circuit contact
output terminal. Individual contact functions are
assigned on the front panel setting screen.
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5.2.14. D-983 Remote Control Module
63. Contact Input Terminal [CTRL IN, 1-6, 7-12, 13-18, 19-24]
Six-circuit RJ45 contact input
terminals. Assign functions to each
contact on the front panel-mounted
setting screen.
CTRL IN
Pin No.
CTRL OUT CTRL IN
1-6
IN 1
IN 2
IN 3
IN 6
IN 5
IN 4
C
7-12
13-18
IN 13
IN 14
IN 15
IN 18
IN 17
IN 16
C
19-24
IN 19
IN 20
IN 21
IN 24
IN 23
IN 22
C
1-4
5-8
1-6
7-12
1
2
3
4
5
6
7
8
IN 7
IN 8
IN 9
IN 12
IN 11
IN 10
C
63
C
C
C
C
64. Contact Output Terminal [CTRL OUT,1-4, 5-8, 9-2, 13-16]
9-12 13-18
13-16 19-24
64
Four-circuit RJ45 contact output
CTRL OUT
Pin No.
terminals. Assign functions to each
contact on the front panel-mounted
setting screen.
1-4
5-8
9-12
13-16
1
2
3
4
5
6
7
8
OUT 1 OUT 5 OUT 9 OUT 13
C 1 C 5 C 9 C 13
OUT 2 OUT 6 OUT 10 OUT 14
C 3 C 7 C 11 C 15
OUT 3 OUT 7 OUT 11 OUT 15
C 2 C 6 C 10 C 14
OUT 4 OUT 8 OUT 12 OUT 16
C 4 C 8 C 12 C 16
5.2.15. D-984VC VCA Control Module
65. Input channel VCA Terminal [IN CH, 1-6, 7-12]
VCA
RJ45 VCA terminals.
These RJ45 VCA terminals
correspond to 12 input channels.
IN CH
Pin No.
CTRL IN
1-4
5-8
IN CH
1-6
7-12
1-6
7-12
1
IN CH 1
IN CH 2
IN CH 3
IN CH 6
IN CH 5
IN CH 4
V
IN CH 7
IN CH 8
IN CH 9
IN CH 12
IN CH 11
IN CH 10
V
2
3
4
5
6
7
8
67
68
65
66
C
C
66. Output Channel VCA Terminal [OUT CH, 1-4, 5-8]
1-4
5-8
1-4
5-8
RJ45 VCA terminals.
These RJ45 VCA terminals
correspond to 8 output channels.
CTRL OUT OUT CH
OUT CH
Pin No.
1-4
OUT CH 1
OUT CH 2
5-8
OUT CH 5
OUT CH 6
OUT CH 7
1
2
3
4
5
6
7
8
OUT CH 3
C
V
C
V
OUT CH 4
OUT CH 8
V
C
V
C
67. Control Input Terminal [CTRL IN, 1-4, 5-8]
RJ45 Control Input terminals.
These RJ45 Control Input terminals
correspond to 8 control inputs.
CTRL IN
Pin No.
1-4
5-8
CTRL IN 5
1
2
CTRL IN 1
C
C
3
4
5
6
7
8
CTRL IN 2
CTRL IN 6
C
C
CTRL IN 3
CTRL IN 7
C
CTRL IN 4
V
C
CTRL IN 8
V
68. Control Output Terminal [CTRL OUT, 1-4, 5-8]
RJ45 Control output terminals.
These RJ45 Control output
terminals correspond to 8 control
outputs.
CTRL OUT
Pin No.
1-4
5-8
CTRL OUT 5
C 5
1
2
3
4
5
6
7
8
CTRL OUT 1
C 1
CTRL OUT 2
C 3
CTRL OUT 6
C 7
CTRL OUT 3
C 2
CTRL OUT 7
C 6
CTRL OUT 4
C 4
CTRL OUT 8
C 8
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6. SETTING BASICS
6.1. Setting Procedures
The D-901's functions need to be set using the front-mounted keys and knob according to scenes of use. After
connecting all external equipment, check the following, then follow the procedures below to set each of the
unit's functions.
Check to be sure that
• The required modules are correctly inserted.
• The power supply is correctly connected.
• The power indicator lights when the power switch is turned on.
Step 1. Set which input channel signal is transmitted to which output channel.
Because the factory default setting is made so that each input (1 – 12) is assigned to all outputs (1
– 8) via the Microphone Bus*, when a microphone, or CD player or other music player is
connected to an input, its signals are output from all output terminals by simply increasing the
corresponding input channel gain. Make input-to-output re-assignment according to scenes of use.
* Refer to p. 82, Block Diagram.
(Refer to p. 41, Bus assignment settings.)
This setting can be performed in either of two ways: On the setting screen display or by way of the
front-mounted keys.
Step 2. Set the input sensitivity.
When the D-921E or D-921F is installed, perform this setting by displaying the setting screen.
(Refer to p. 26, PAD Settings.)
When the D-922E or D-922F is installed, perform this setting using its DIP switch.
(Refer to p. 12 – 13.)
Set the sensitivity so that the front-mounted Input channel indicator [SIG] does not light red.
Step 3. Set the input channel gain.
(Refer to p. 25, Input/Output Gain Settings.)
This setting can be performed in any of three ways: On the setting screen display (two methods)
or by way of the front-mounted keys.
Note: When using the D-984VC VCA Control Module, perform gain settings as well for the input
channel to be remotely controlled.
Step 4. Set the output channel gain.
(Refer to p. 25, Input/Output Gain Settings.)
This setting can be performed in any of three ways: On the setting screen display (two methods)
or by way of the front-mounted keys.
Note: When using the D-984VC VCA Control Module, perform gain settings as well for the output
channel to be remotely controlled.
Step 5. Set individual functions as required.
(Refer to p. 18, Setting Flowcharts.)
Refer to the setting flowcharts for the appropriate setting method for the function to be used.
When using Stereo Link, Grouping and Crossover functions, first perform the required settings
on the Utility setting screen.
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Note
It is highly recommended that any changed parameters be immediately saved as preset memory on the
Preset Memory setting screen. (Refer to p. 57, Preset Memory Save.) This permits the parameters of each
function to be saved and protected, even if the power is switched off. All currently saved parameters can be
recalled and reproduced when the power is switch on again. (Refer to p. 60, Initial Preset Memory Selection.)
Settings need not be saved when temporarily setting or changing parameters.
6.2. Setting Flowcharts
All the functions described hereinafter can also be set at a PC using the dedicated software. Please access
In the following charts, the Screen shift keys [
] are used to move vertically (next screen display) and the
shift keys [
] to move horizontally between the solid line setting screen boxes ( ) . For movements
within the dotted line setting screen boxes (
corresponding pages.
) and parameter settings for each setting screen, refer to the
6.2.1. Input and output settings
(Only when using the D-921E or D-921F
Microphone/Line Input Module)
(Only when using the D-923AE Digital Input Module)
Channel Status Verification (p. 27)
Input signal status verification
Sampling frequency verification
Pre-emphasis verification
Phantom power ON/OFF Settings
(Only when the PAD is set to
"MIC.")
(p. 26)
PAD (Input Sensitivity) Settings
(p. 26)
(Only when using the D-937SP Digital Input Module)
Channel Status Verification (p. 27)
Input signal status verification
Sampling frequency verification
Pre-emphasis verification
(Only when using the D-936R Stereo
Input Module)
Line Input Mode Selection (p. 26)
Line (Stereo) Input Selection
(p. 28)
Line (Stereo) Input Selection
(p. 28)
Input trim settings (p. 28)
Input 1 Gain Settings
Input Trim Gain Settings
Input trim polarity settings
High-pass filter settings (p. 29)
Cutoff Frequency Settings
Q settings
Equalizer settings (p. 30)
Gain Settings (low frequency)
Gain Settings (high frequency)
Center frequency settings
Q settings
Center frequency settings
Q settings
1 (To next page)
2 (To next page)
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1 (From the previous page)
Selection
2 (From the previous page)
Compressor/Auto-Leveler Mode
(p. 31)
(Compressor mode) (Auto-leveler mode)
Compressor settings (p. 31)
Auto-leveler settings (p. 33)
Target Level Settings
Threshold Level Settings
Ratio settings
Maximum gain settings
Attack time settings
Release time settings
Attack time settings
Release time settings
Makeup gain settings
Level sense settings (p. 34)
Attack Time Settings
Release time settings
Gate settings (p. 35)
Threshold Level Settings
Hysteresis settings
Depth settings
Hold time settings
Attack time settings
Release time settings
Auto-Mixing Group Settings
(p. 37)
Ducker settings (p. 38)
Attenuation settings
Priority Settings
Attack time settings
Release time settings
NOM Attenuation ON/OFF Settings
(p. 39)
Input Channel Gain Settings
(p. 40)
Input Channel Group Trim Gain
(Only when Group is set)
Settings
(p. 40)
Bus assignment and crosspoint gain settings (p. 41)
Bus Assignment Settings
Crosspoint gain settings
3
(To next page)
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3
(From the previous page)
Input 12 Gain Settings
Output 1 Gain Settings
Same items as for Input 1
Output Channel Gain Settings
(p. 42)
Output Channel Group Trim Gain
(Only when Group is set)
Settings
(p. 42)
Crossover settings
(Only when Crossover function is enabled) (p. 43)
Slope Settings (High Frequency)
Cutoff frequency settings
Q settings
Q2 settings
Crossover gain settings
Crossover filter polarity settings
Slope Settings (Low Frequency)
Same items as for high frequency
Filter settings (p. 45)
Filter 1 Settings (Type Selection)
Parametric equalizer
High-pass filter (6 dB/12 dB)
Low-pass filter (6 dB/12 dB)
High shelving filter
Low shelving filter
Horn equalizer
Notch filter
All-pass filter
Filter 6* Settings (Type Selection)
Threshold Level Settings
Same items as for Filter 1
Compressor settings (p. 50)
Ratio settings
Attack time settings
Release time settings
Makeup gain settings
Delay Time Settings
(p. 51)
Output 8 Gain Settings
Same items as for Output 1
* The number of filters to be displayed differs depending on crossover configuration settings. (Refer to p. 62.)
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6.2.2. Microphone bus settings
Microphone bus selector key
SEL
Feedback suppression settings (p. 52)
Dynamic Mode Settings
Auto mode activation
Filter number settings
Dynamic mode filter initialization
Auto mode filter initialization
Feedback suppression filter setting confirmation (p. 54)
Mode Confirmation
(Filter 1 settings)
Frequency confirmation
Filter gain confirmation
Q confirmation
Same items as for Filter 1
Mode Confirmation
(Filter 12 settings)
Effect key
EFFECT
Effect (echo) settings (p. 55)
Echo Gain Settings
Feedback ratio settings
Feedback delay settings
Initial echo (pre-) delay settings
Low-pass filter frequency settings
Low-pass filter Q settings
Bus assignment and crosspoint gain settings (p. 56)
Bus Assignment Settings
Crosspoint gain settings
6.2.3. Preset memory settings
Preset key
PRESET
Preset Memory Save
(p. 57)
(p. 58)
(p. 58)
Preset Memory Recall
Preset Memory Delete
Preset Memory Crossfade Time
Settings
(p. 59)
Initial Preset Memory Selection
(p. 60)
Configuration Save
(p. 60)
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6.2.4. Utility settings
Utility key
UTILITY
Stereo Link Settings
(p. 61)
(p. 61)
Group Settings
Crossover Configuration Settings
(p. 62)
NOM Attenuation Settings
(p. 64)
Contact input/output settings (p. 65)
(Only when using the D-981 or D-983 Remote Control Module, or
D-984VC VCA Control Module)
Input Contact Number Selection
Preset memory recall
Volume UP
Volume DOWN
Channel ON/OFF
Line (stereo) input selection
Output Contact Number Selection
Normal make/break
Preset memory recall tally
Channel ON/OFF tally
Contact input status tally
Line (stereo) input selection tally
Operation key protection ON/OFF
Protect Settings
(p. 68)
RS-232C port settings (p. 70)
RS-232C transmission rate settings
Control Mode Selection
Gain confirmation for all 12 input channels
Gain confirmation for all 8 output channels
All Input/Output Channel Gain
Confirmation
(p. 71)
(Only when using the D-984VC VCA Control Module)
VCA status confirmation for all 12 input channels
VCA status confirmation for all 8 output channels
All Input/Output VCA Status
Confirmation
(p. 71)
Module type confirmation (p. 72)
All slots confirmation
Individual Slots Confirmation
Cooling Fan Operating Status
(p. 73)
Confirmation
Firmware Version Confirmation
(p. 73)
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6.3. Setting Keys and Knob
Parameter input section
DIGITAL MIXER model D-901
Screen shift keys
Utility key
CHANGE
PARAMETER
UTILITY
PRESET
Setting knob
LOCK
ON
Preset key
PUSH-ENTER
ENTRY SECTION
1
2
3
4
5
6
7
8
Function ON/OFF key
PRESET
Preset memory selection section
Preset memory selector keys
Input channel
control section
Microphone bus
control section
Output channel
control section
PEAK
1
2
3
4
5
6
7
1
2
+12dB
8
+6dB
9
3
0dB
-6dB
10
11
12
4
-12dB
5
-20dB
SEL
-40dB
6
SEL SIG
0N
0N
SIG SEL
7
8
FBS
0N
SIG SEL
ON
EFFECT
ON
INPUT
MIC BUS
OUTPUT
Input volume
control
Microphone bus
selector key
Effect key
Output volume
control
Output channel
selector keys
Input channel
selector keys
Input channel
ON/OFF key
Output channel
ON/OFF key
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6.4. Setting Screen Displays
[Input/Output Gain Setting Screen Example]
Indicates the object currently being set. In
this example, IN1 (Input 1) is the object
The channel selected with the
Input channel selector key is
displayed.
being set. Pressing the
shift key here
switches the display to the input trim gain
setting screen. The [IN 1] TRIM indication
is displayed on the first line, and the IN 1
(Input 1) trim gain becomes the setting
object.
The channel selected with the
Output channel selector key is
displayed.
I N 1 ]
[ O U T 1 ]
0 . 0 d B
– I N F d B
The gain of the input channel is displayed.
In this example, the gain of Input channel 1
is displayed. Setting values can be
changed using the Input volume control.
The gain of the output channel is displayed.
In this example, the gain of Output channel
1 is displayed. Setting values can be
changed using the Output volume control.
[Equalizer Setting Screen Example]
The channel number for which
settings are to be changed is
displayed.
The object currently being set is
displayed.
Displayed when the previous screen
exists. In this case, the PEQ-L (low
frequency equalizer) setting screen
appears when the
pressed.
shift key is
[ I N 1 ] P E Q - H
Displayed when the next screen
exists. In this case, the COMPMODE
(compressor/auto-leveler) setting
G A I N
+ 0 . 0 d B
screen appears when the
is pressed.
shift key
Setting items are displayed. In this
example, the PEQ-H (high frequency
equalizer) gain is being set. To change the
frequency or Q of PEQ-H, press the shift
key. The setting item display changes to
Parameters and selection contents can be
changed with the Setting knob. In this
example, the equalizer gain can be
changed.
FREQ and Q each time the
pressed.
shift key is
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7. INPUT/OUTPUT GAIN SETTINGS
There are 3 possible setting methods.
7.1. Input and Output Channel Control Section Settings
Step 1. Press the desired Input (or Output) channel
selector key.
(Example: Input channel 1 gain setting)
The selected channel's SEL indicator lights.
1
PEAK
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
Note
+12dB
+6dB
0dB
8
When Group setting is performed, selecting
a channel in the group allows all SEL
indicators of the input channels grouped
together to light all at once.
9
-6dB
10
11
12
-12dB
-20dB
-40dB
SEL
SEL SIG
SEL
2
FBS
0N
SIG SEL
Step 2. Rotate the Input (or Output) volume control
ON
EFFECT
ON
to set the gain.
Input/output gain setting range:
INPUT
MIC BUS
OUTPUT
–INF (–∞) to +10 dB
7.2. Input/Output Gain Setting Screen Operation
CHANGE
PARAMETER
Step 1. Press the desired Input (or Output) channel
I N 1 ]
[ O U T 1 ]
0 . 0 d B
Input channel 1
gain setting
selector key.
– I N F d B
PUSH-ENTER
Step 2. Using the Screen shift key, display the input
(or output) gain setting screen.
Step 3. Rotate the Setting knob to set the gain.
CHANGE
PARAMETER
I N 1 2 ]
[ O U T 1 ]
0 . 0 d B
Input channel 12
gain setting
– I N F d B
PUSH-ENTER
CHANGE
PARAMETER
[ I N 1 ]
O U T 1 ]
0 . 0 d B
Output channel 1
gain setting
– I N F d B
PUSH-ENTER
CHANGE
PARAMETER
[ I N 1 ]
O U T 8 ]
0 . 0 d B
Output channel 8
gain setting
– I N F d B
PUSH-ENTER
7.3. Input/Output Channel Gain Setting Screen Operation
Perform the "Input Channel Gain Settings" (p. 40) and "Output Channel Gain Settings" (p. 42).
25
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8. INPUT-RELATED SETTINGS
The channel selected with the Input channel selector keys can be enabled or disabled using the Input channel
ON/OFF key.
To enable or disable individual functions, use the function ON/OFF key when each function is displayed.
8.1. Phantom Power ON/OFF Settings (Only with D-921E or D-921F module)
• Can be displayed and set only when MIC is selected on the PAD
ON
[ I N 1 ] P H A N T OM
O F F
setting screen (explained in the next section).
• Enable or disable phantom power using the function ON/OFF
key.
Note
Signals are muted for a specified period of time while changing
settings.
(Only when the
• Pressing the Input channel selector key for the channel in which
the D-921E or D-921F module is installed permits phantom
power setting for that channel. The [IN 1] indication changes to
the selected channel number indication.
PAD is set to
"MIC.")
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.2. PAD (Input Sensitivity) Settings (Only with D-921E or D-921F module)
• Rotate the Setting knob to set the PAD (input sensitivity).
Parameter setting range: MIC: –50 or –36 dB
LINE: –10 or +4dB
CHANGE
PARAMETER
[ I N 1 ] P A D
L I N E
+ 4 d B
PUSH-ENTER
Note
Signals are muted for a specified period of time while changing
settings.
• Pressing the Input channel selector key for the channel in which
the D-921E or D-921F module is installed permits PAD selection
for that channel. The [IN 1] indication changes to the selected
channel number indication.
Input trim gain settings
(p. 28)
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.3. Line Input Mode Selection (Only with D-936R module)
CHANGE
PARAMETER
• Rotate the Setting knob to select the D-936R Stereo Input
Module operation mode.
[ I N 1 ] L I N E I N
M I X A L L
• Either a single stereo input can be selected from among the 4
available stereo inputs (SELECT mode) or all 4 stereo channels
can be mixed (MIX ALL mode). Also, in MIX ALL mode, stereo
sources can be selected with the input selection screen. (Refer to
p. 28.)
PUSH-ENTER
Note
Signals are muted for a specified period of time while changing
settings.
• The setting screen reverts to the Input/Output Gain Setting
Line (stereo) input
selection (p. 28)
screen when the
shift key is pressed.
26
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8.4. Channel Status Verification (Only with D-923AE or D-937SP module)
Input signal status
verification
Sampling frequency
verification
Pre-emphasis
verification
[
I
N
1
]
S T A T U S
[
I
N
1
]
S T A T U S
k H z
[
I
N
1
]
S T A T U S
N O N
L
O
C K
F s
4
8
E M P H A S
I
S
E
Using D-923AE: Input trim settings (next page)
Using D-937SP: Line (stereo) input selection (next page)
8.4.1. Input signal status verification
• Input signal status of each channel can be verified.
[ I N 1 ] S T A T U S
L O C K
Display
LOCK
UNLOCK
Input signal status
Normal
No cable connected or equipment power not
turned on
Non AUDIO Not an audio signal
Non PCM
DTS CD
Not PCM data
DTS CD
8.4.2. Sampling frequency verification
• Sampling frequencies can be verified.
[ I N 1 ] S T A T U S
Display example: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
• The indication of [– – –] is displayed when it is impossible to
recognize.
F s
4 8 k H z
• Sampling rate converter (SRC) is always ON.
8.4.3. Pre-emphasis verification
• The "DETECT" indication is displayed when pre-emphasis is
detected, automatically turning on the de-emphasis.
[ I N 1 ] S T A T U S
E M P H A S I S N O N E
[ I N 1 ] S T A T U S
E M P H A S I S D E T E C T
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
27
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8.5. Line (Stereo) Input Selection (Only with D-936R or D-937SP module)
Using D-936R: Line input mode selection (p. 26)
Using D-937SP: Channel status verification (previous page)
CHANGE
PARAMETER
• Rotate the Setting knob to select the line (stereo) number and
[ I N 1 ] L I N E S E L
[ 1 ]
press the function ON/OFF key to enable or disable the input. For
example, when the [IN 1] indication is displayed, settings are
performed for the stereo module inserted into the unit's rear-
mounted IN1 and 2 slot.
ON
1
2
3
4
PUSH-ENTER
• The "–" indication is displayed when disabled.
• There are two operation modes for the module: MIX ALL and
SELECT modes. (MIX ALL mode is provided with the D-936R
only.)
MIX ALL mode: Mixes 4 (stereo) line inputs. Any individual stereo
input can also be disabled.
SELECT mode: Selects a single (stereo) line input. Trim settings
can be performed for individual line inputs.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.6. Input Trim Settings
Using D-921F or D-921E: PAD (Input sensitivity) settings (p. 26)
Using D-936R or D-937SP: Line (stereo) input selection (previous section)
Using D-923AE: Channel status verification (previous page)
Gain
Polarity
[
I
N
1
]
T R
I
M
.
[
I
N
1
]
T R
I
M
+ 0
0 d B
P O L
N O R M A L
High-pass filter settings (next page)
8.6.1. Input trim gain settings
CHANGE
PARAMETER
• Rotate the Setting knob to set the input trim gain.
[ I N 1 ] T R I M
+ 0 . 0 d B
Parameter setting range: –15 to +15 dB in 0.1 dB steps
• Pressing an Input channel selector key allows the trim to be
adjusted for that channel. The [IN 1] indication changes to the
selected channel number indication.
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.5.2. Input trim polarity settings
CHANGE
PARAMETER
• Rotate the Setting knob to set the input trim polarity.
Parameter setting range: NORMAL, INVERSE
[ I N 1 ] T R I M
P O L N O R M A L
• Pressing an Input channel selector key allows the trim to be
adjusted for that channel. The [IN 1] indication changes to the
selected channel number indication.
PUSH-ENTER
28
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8.7. High-Pass Filter Settings
ON
The high-pass filter function can be enabled or disabled for the displayed channel by using the
function ON/OFF key even when any of the following screens is displayed. The function ON/OFF
Indicator lights when enabled (ON).
[Screen display operations]
Input trim settings (previous page)
Cutoff frequency
Q
[
I
N
1
]
H P F
[
I
N
1
]
H P F
0
F R E Q
6
0 H z
Q
.
7
0
7
Equalizer settings (next page)
8.7.1. Cutoff frequency settings
• Rotate the Setting knob to set the high-pass filter cutoff
frequency.
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
CHANGE
PARAMETER
[ I N 1 ] H P F
F R E Q
6 0 H z
PUSH-ENTER
Note: Slope is fixed at 12 dB/oct.
• Pressing an Input channel selector key permits the high-pass
filter to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.7.2. Q settings
• Rotate the Setting knob to set the high-pass filter Q.
Parameter setting range: 0.500 – 2.563 (51 points)
• Pressing an Input channel selector key permits the high-pass
filter to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] H P F
Q
0 . 7 0 7
PUSH-ENTER
29
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8.8. Equalizer Settings
ON
When the (low or high frequency) Equalizer setting screen is displayed, equalization for the
displayed channel can be enabled or disabled by pressing the function ON/OFF key. When enabled
(ON), the function ON/OFF indicator lights.
[Screen display operations]
High-pass filter settings (previous page)
Gain
Center frequency
Q
[
I
N
1
]
]
P E Q
+ 0
-
.
L
[
I
N
1
]
P E Q
-
.
L
[
I
N
N
1
1
]
]
P E Q
4
-
.
L
3
(Low frequency)
(High frequency)
G A
I
I
N
0 d B
F R E Q
6
3
0
0 H z
Q
1
1
8
8
[
I
N
1
P E Q
+ 0
-
.
H
[
I
N
1
]
P E Q
-
H
[
I
P E Q
4
-
.
H
3
G A
N
0 d B
F R E Q
1
.
2
5
k H z
Q
Compressor/auto-leveler mode selection (next page)
8.8.1. Gain settings
• Rotate the Setting knob to set the gain.
(Low frequency)
CHANGE
PARAMETER
Parameter setting range: –15 to +15 dB in 0.1 dB steps
• Pressing an Input channel selector key permits the equalizer gain
to be set for that channel. The [IN 1] indication changes to the
selected channel number indication.
[ I N 1 ] P E Q - L
G A I N
+ 0 . 0 d B
PUSH-ENTER
(High frequency)
• The setting screen reverts to the Input/Output Gain Setting
CHANGE
PARAMETER
screen when the
shift key is pressed.
[ I N 1 ] P E Q - H
G A I N
+ 0 . 0 d B
PUSH-ENTER
8.8.2. Center frequency settings
• Rotate the Setting knob to set the center frequency.
(Low frequency)
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
• Pressing an Input channel selector key permits the equalizer
center frequencies to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] P E Q - L
F R E Q
6 3 0 . 0 H z
PUSH-ENTER
(High frequency)
CHANGE
PARAMETER
[ I N 1 ] P E Q - H
F R E Q
1 . 2 5 k H z
PUSH-ENTER
8.8.3. Q settings
• Rotate the Setting knob to set the Q.
(Low frequency)
CHANGE
PARAMETER
Parameter setting range: 0.267 – 69.249 (96 points)
• Pressing an Input channel selector key permits the equalizer Q to
be set for that channel. The [IN 1] indication changes to the
selected channel number indication.
[ I N 1 ] P E Q - L
Q
4 . 3 1 8
PUSH-ENTER
(High frequency)
CHANGE
PARAMETER
[ I N 1 ] P E Q - H
Q
4 . 3 1 8
PUSH-ENTER
30
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8.9. Compressor/Auto-Leveler Mode Selection
Select which function to use, compressor (next section) or auto-leveler (p. 33).
Equalizer Settings
(previous page)
CHANGE
PARAMETER
• Rotate the Setting knob to select compressor mode (COMP) or
[ I N 1 ] C OM P MO D E
M P
auto-leveler mode (LEVELER). Selecting the mode enables its
corresponding function.
C
O
PUSH-ENTER
Refer to the next section for the compressor settings, and p. 33
for the auto-leveler settings.
• Changing the mode cancels the parameters for the newly
selected mode even they have been preset, returning them to the
default settings.
• Pressing an Input channel selector key permits the compressor
mode or the auto-leveler mode to be set for that channel.
• The setting screen reverts to the Input/Output Gain Setting
Compressor settings
(next section) or
auto-leveler settings (p. 33)
screen when the
shift key is pressed.
8.10. Compressor Settings (only when the compressor mode is selected in Section 8.9.)
Note
No following displays appear when the auto-leveler mode is selected.
ON
When any of the following screens is displayed, the compression function for the displayed channel
can be enabled or disabled with the function ON/OFF key. When enabled (ON), the function
ON/OFF Indicator lights.
[Screen display operations]
Compressor/auto-leveler mode selection (previous section)
Threshold level
Ratio
Attack time
Release time
Makeup gain
[
I
N
1
]
C OM P
[
I
N
1
I
]
C OM P
[
I
N
1
]
C OM P
[
I
N
1
]
C OM P
[
I
N
1
]
C OM P
T H R E S H
+ 0 d B
R A T
O
1
:
1
A T T A C K
1
0
.
0
m
s
R E L E A S E
5
0
0
m
s
G A
I
N
+ 0
d
B
Level sense settings (p. 34)
8.10.1. Threshold level settings
• Rotate the Setting knob to set the threshold level.
Parameter setting range: –20 to +20 dB in 1 dB steps
• Pressing an Input channel selector key permits the compression
threshold level to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] C OM P
T H R E S H
+ 0 d B
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
31
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8.10.2. Ratio settings
• Rotate the Setting knob to set the ratio.
Parameter setting range: 1:1, 2:1, 3:1, 4:1, 8:1, 12:1, 20:1, INF
(∞):1
• Pressing an Input channel selector key permits the compression
ratio to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] C OM P
R A T I O
1 : 1
PUSH-ENTER
8.10.3. Attack time settings
• Rotate the Setting knob to set the attack time.
Parameter setting range: 0.2 ms – 5 s (Refer to p. 85 for more
information.)
• Pressing an Input channel selector key permits the compression
attack time to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] C OM P
A T T A C K
1
0 . 0
m
s
PUSH-ENTER
8.10.4. Release time settings
• Rotate the Setting knob to set the release time.
Parameter setting range: 10 ms – 5 s (Refer to p. 85 for more
information.)
• Pressing an Input channel selector key permits the compression
release time to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] C OM P
R E L E A S E
5 0 0
m
s
PUSH-ENTER
8.10.5. Makeup gain settings
• Rotate the Setting knob to set the makeup gain.
CHANGE
PARAMETER
[ I N 1 ] C OM P
Parameter setting range: –INF (–∞) to +10 dB, in 1 dB steps
• Pressing an Input channel selector key permits the compression
makeup gain to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
G A I N
+ 0
d
B
PUSH-ENTER
32
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8.11. Auto-Leveler Settings (only when the auto-leveler mode is selected in Section 8.9.)
The auto-leveler function performs to keep the output level constant by suppressing the change of sound
volume. Setting the target level (the constant level to be automatically adjusted to) and the maximum gain (the
amount of gain to bring the lower level to the target level) automatically compensates for the input level. Note
that setting an excessive amount of gain increases the input sensitivity, easily causing feedback.
Note: No following displays appear when the compressor mode is selected.
ON
When any of the following screens is displayed, the auto-leveler function for the displayed channel
can be enabled or disabled with the function ON/OFF key. When enabled (ON), the function
ON/OFF Indicator lights.
[Screen display operations]
Compressor/auto-leveler mode selection (p. 31)
Target level
Maximum gain
Attack time
Release time
[
I
N
1
]
L E V E L E R
+ 0 d B
[
I
N
1
]
L E V E L E R
[
I
N
1
]
L E V E L E R
[
I
N
1
]
L E V E L E R
T A R GE
T
M A X G A
I
N
+ 0 d B
A T T A C K
5
0
0
m
s
R E L E A S E
1
.
0
0
s
Level sense settings (next page)
8.11.1. Target level settings
[ I N 1 ] L E V E L E R
• Rotate the Setting knob to set the target level.
CHANGE
PARAMETER
Parameter setting range: –20 to +10 dB in 1 dB steps
• Pressing an Input channel selector key set for the auto-leveler
mode permits the auto-leveler target level to be set for that
channel. The [IN 1] indication changes to the selected channel
number indication.
T A R G E T
+ 0 d B
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.11.2. Maximum gain settings
• Rotate the Setting knob to set the maximum gain.
Parameter setting range: 0 to +20 dB in 1 dB steps
• Pressing an Input channel selector key set for the auto-leveler
mode permits the auto-leveler maximum gain to be set for that
channel. The [IN 1] indication changes to the selected channel
number indication.
CHANGE
PARAMETER
[ I N 1 ] L E V E L E R
M A X G A I N
+ 0 d B
PUSH-ENTER
8.11.3. Attack time settings
• Rotate the Setting knob to set the attack time.
Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more
information.)
• Pressing an Input channel selector key set for the auto-leveler
mode permits the auto-leveler attack time to be set for that
channel. The [IN 1] indication changes to the selected channel
number indication.
CHANGE
PARAMETER
[ I N 1 ] L E V E L E R
A T T A C K
5 0 0
m
s
PUSH-ENTER
33
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8.11.4. Release time settings
• Rotate the Setting knob to set the release time.
Parameter setting range: 100 ms – 10 s (Refer to p. 86 for more
information.)
• Pressing an Input channel selector key set for the auto-leveler
mode permits the auto-leveler release time to be set for that
channel. The [IN 1] indication changes to the selected channel
number indication.
CHANGE
PARAMETER
[ I N 1 ] L E V E L E R
R E L E A S E
1 . 0
0
s
PUSH-ENTER
8.12. Level Sense Settings
The level sense refers to a parameter used to adjust the sensitivity by which the gate detects an input signal
level. Proper attack time settings prevent the gate function from being accidentally triggered by pulse noise.
(Refer to the next page.)
[Screen display operations]
Compressor settings (p. 31) or Auto-leveler settings (previous page)
Attack time
Release time
[
I
N
1
]
L e
v
0
e
.
l
[
I
N
1
]
L e
v
e
2
l
A T T A C K
2
m
s
R E L E A S E
0
0
m
s
Gate settings (next page)
8.12.1. Attack time settings
• Rotate the Setting knob to set the attack time.
Parameter setting range: 0.2 ms – 5 s (Refer to p. 86 for more
information.)
• Pressing an Input channel selector key permits the level sense
attack time to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
CHANGE
PARAMETER
[ I N 1 ] L e v e l
A T T A C K
0 . 2
m
s
PUSH-ENTER
screen when the
shift key is pressed.
8.12.2. Release time settings
• Rotate the Setting knob to set the release time.
Parameter setting range: 10 ms – 5 s (Refer to p. 86 for more
information.)
• Pressing an Input channel selector key permits the level sense
release time to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] L e v e l
R E L E A S E
2 0 0
m
s
PUSH-ENTER
34
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8.13. Gate Settings
The gate function allows the input signal to be passed,
attenuated or cut depending on its signal level.
[Example: Hysteresis parameter is set to +10 dB.]
Input level
Open
The gate allows the signal to pass when open, and
attenuates or cuts the signal when closed. The gate opens
when the input signal reaches a level above the Threshold
plus Hysteresis parameter (half the Hysteresis) as shown in
the figure at right. Once open, the input signal must reach a
level below the Threshold minus Hysteresis parameter to
close.The Ducker function (p. 38) and the NOM attenuation
function (p. 39) are controlled by the gate's open/close
operations.
+10 dB
Threshold level
Hysteresis
-
10 dB
Closed
ON
When any of the following screens is displayed, the gate function for the displayed channel can be
enabled or disabled with the function ON/OFF key. When enabled (ON), the function ON/OFF
Indicator lights.
Note: When an input channel is set to OFF, the gate function on that channel does not operate.
[Screen display operations]
Level sense settings (previous page)
Threshold level
Hysteresis
Depth
Hold time
[
I
N
1
]
G A T E
[
I
N
1
]
G A T E
[
I
N
1
]
G A T E
[
I
N
1
]
G A T E
To A
T H R E S H
–
4
0 d B
H Y S T
+ 0 d B
D E P T H
–
2
0
d
B
H O L D
1
0
.
.
0
0
m
m
s
s
Attack time
Release time
[
I
N
1
]
G A T E
[
I
N
1
]
G A T E
A
A T T A C K
1
0
R E L E A S E
1
0
.
0
m
s
Auto-mixing group settings (p. 37)
8.13.1. Threshold level settings
• Rotate the Setting knob to set the threshold level.
CHANGE
PARAMETER
[ I N 1 ] G A T E
Parameter setting range: –50 to +20 dB in 1 dB steps
• Pressing an Input channel selector key permits the gate threshold
level to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
T H R E S H
– 4 0 d B
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.13.2. Hysteresis settings
• Rotate the Setting knob to set the hysteresis (the difference
between the input signal levels used to open and close the gate).
Parameter setting range: 0 to +10 dB in 1 dB steps
• Pressing an Input channel selector key permits the gate
hysteresis to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] G A T E
H Y S T
+ 0 d B
PUSH-ENTER
35
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8.13.3. Depth settings
• Rotate the Setting knob to set the depth (signal attenuation when
the gate is closed).
CHANGE
PARAMETER
[ I N 1 ] G A T E
Parameter setting range: –INF (–∞) to 0 dB in 1 dB steps
• Pressing an Input channel selector key permits the gate depth to
be set for that channel. The [IN 1] indication changes to the
selected channel number indication.
D E P T H
–
2 0 d B
PUSH-ENTER
8.13.4. Hold time settings
• Rotate the Setting knob to set the hold time (the interval the gate
is kept open when an input signal level drops below the closing
threshold level).
Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more
information.)
CHANGE
PARAMETER
[ I N 1 ] G A T E
H O L D
1
0 . 0
m
s
PUSH-ENTER
• Pressing an Input channel selector key permits the gate hold time
to be set for that channel. The [IN 1] indication changes to the
selected channel number indication.
8.13.5. Attack time settings
• Rotate the Setting knob to set the attack time (the time required
for the gate to open).
CHANGE
PARAMETER
[ I N 1 ] G A T E
Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more
information.)
A T T A C K
1
0 . 0
m
s
PUSH-ENTER
• Pressing an Input channel selector key permits the gate attack
time to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
8.13.6. Release time settings
• Rotate the Setting knob to set the release time (the time required
for attenuation to reach the gain set in the depth setting when the
gate is closed).
Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more
information.)
CHANGE
PARAMETER
[ I N 1 ] G A T E
R E L E A S E
1
0 . 0
m
s
PUSH-ENTER
• Pressing an Input channel selector key permits the gate release
time to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
36
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8.14. Auto-Mixing Group Settings
Both the Ducker function (next page) and the NOM Attenuation function (p. 39) are Auto-Mixing Functions that
automatically adjust individual input channel gains in response to input signal level.
The auto-mixing functions can operate in each of the 4 groups, GROUP A through D. Although all the input
channels are grouped into GROUP A by default, they can be individually assigned to the desired groups.
The figure below shows the block diagram of the Auto-Mixing (Auto MIX) section.
[Auto-mixing block diagram]
The diagram below shows an example where the input channels 1 and 2 are assigned to GROUP A, and the
input channels 3 and 4 to GROUP B.
[GROUP A]
Ducker
Control
NOM
Control
SIG LED
Level
Sense
Fader
Trim
Microphone 1
GR Trim
ON
COMP/
Auto-leveler
HPF PEQ(2)
Gate
Auto MIX
SIG LED
Level
Sense
Fader
Microphone 2
Trim
GR Trim
ON
COMP/
Auto-leveler
HPF PEQ(2)
Gate
Auto MIX
[GROUP B]
Ducker
Control
NOM
Control
SIG LED
Level
Sense
Fader
Trim
Microphone 3
GR Trim
ON
COMP/
Auto-leveler
HPF PEQ(2)
Gate
Auto MIX
SIG LED
Level
Sense
Fader
Microphone 4
Trim
GR Trim
ON
COMP/
Auto-leveler
HPF PEQ(2)
Gate
Auto MIX
37
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Gate settings (p. 35)
CHANGE
PARAMETER
• Rotate the Setting knob to select a group from GROUP A to D.
• Pressing an Input channel selector key permits the auto-mixing
group to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
[ I N 1 ] A U T OM I X
G R O
U
P
A
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.15. Ducker Settings
The ducker function is one of the D-901's auto-mixing functions, and automatically adjusts individual input
channel gains in response to input signal level. Refer to the previous page for the block diagram of the Auto-
Mixing section.
When a received signal exceeds the gate threshold level, the ducker function automatically attenuates all
other input signals which are lower than that input channel in priority.
This function operates in individual auto-mixing groups (previous page).
ON
When any of the following screens is displayed, the ducker function for the displayed channel can
be enabled or disabled by means of the function ON/OFF key. When enabled (ON), the function
ON/OFF Indicator lights.
Note: When an input channel is set to OFF, the ducker function on that channel does not operate.
[Screen display operations]
Auto-mixing group settings (previous page)
Priority order
Attenuation
Attack time
Release time
[
I
N
1
]
D U C K E R
T Y
[
I
N
1
]
D U C K E R
[
I
N
1
]
D U C K E R
[
I
N
1
]
D U C K E R
P R
I
O R
I
8
D E P T H
–
2
0 d B
A T T A C K
1
0
.
0
m
s
R E L E A S E
1
0
.
0
m
s
NOM attenuation ON/OFF settings (next page)
8.15.1. Priority settings
• Rotate the Setting knob to set priorities.
Parameter setting range: 1 – 8 (1: Highest priority; 8: Lowest
priority)
• Pressing an Input channel selector key permits ducker priorities
to be set for that channel. The [IN 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] D U C K E R
P R I O R I T Y
8
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
8.15.2. Attenuation settings
• Rotate the Setting knob to set an attenuation.
CHANGE
PARAMETER
[ I N 1 ] D U C K E R
Parameter setting range: –INF (–∞) to 0 dB in 1 dB steps
• Pressing an Input channel selector key permits the ducker
attenuation to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
D E P T H
–
2 0 d B
PUSH-ENTER
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8.15.3. Attack time settings
• Rotate the Setting knob to set the attack time (the time required
for the attenuation to be a set value).
CHANGE
PARAMETER
[ I N 1 ] D U C K E R
Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more
information.)
A T T AC K
1
0 . 0
m
s
PUSH-ENTER
• Pressing an Input channel selector key permits the ducker attack
time to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
8.15.4. Release time settings
• Rotate the Setting knob to set the release time (the time required
for the attenuation to reach the original gain of 0 dB).
Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more
information.)
CHANGE
PARAMETER
[ I N 1 ] D U C K E R
R E L E A S E
1
0 . 0
m
s
PUSH-ENTER
• Pressing an Input channel selector key permits the ducker
release time to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
8.16. NOM Attenuation ON/OFF Settings
The NOM Attenuation function is one of the D-901's auto-mixing functions, and automatically adjusts
individual input channel gains in response to input signal level. Refer to p. 37 for the block diagram of the
Auto-Mixing section.
NOM is an acronym of Number of Open Microphones, and represents the number of microphones in open
status (the number of input channels with open gates).
The NOM attenuation function automatically adjusts the open microphone's input channel gain depending on
the number of open microphones. The open microphone channel gain is attenuated by the gain set on the
Utility setting screen (p. 61) each time the number of open microphones doubles. The use of this function
allows an output level to be kept constant, thus helping to prevent feedback.
This function operates in individual auto-mixing groups (p. 37).
Note: When an input channel is set to OFF, the NOM function on that channel does not operate.
Ducker settings
(previous page)
• Press the function ON/OFF key to enable or disable the NOM
attenuation function for individual input channels.
[ I N 1 ] N OM
O F F
ON
• Pressing an Input channel selector key enables or disables the
NOM attenuation function for that channel. The [IN 1] indication
changes to the selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
Input channel gain
settings (next page)
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8.17. Input Channel Gain Settings
NOM attenuation
ON/OFF settings
(previous page)
• Rotate the Setting knob to set the input channel gain.
Parameter setting range: –INF (–∞) to +10 dB
CHANGE
PARAMETER
[ I N 1 ] F A D E R
• Press the function ON/OFF key to enable or disable the channel.
• Pressing an Input channel selector key permits the gain to be set
for that channel. The [IN 1] indication changes to the selected
channel number indication.
ON
O N
– I N F d B
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
Bus assignment settings
(next page) or Input
channel group trim gain
settings (next section)
8.18. Input Channel Group Trim Gain Settings (Only when Group is set)
• The indication at left is displayed only when Group setting is
performed. Perform the Group settings on the Utility setting
screen (p. 61).
• Rotate the Setting knob to set the group trim gain (offset gain).
Parameter setting range: –INF (–∞) to +10 dB in 0.1 dB steps
• Pressing an Input channel selector key permits the group trim
gain to be set for that channel. The [IN 1] indication changes to
the selected channel number indication.
CHANGE
PARAMETER
[ I N 1 ] G R - T R I M
+ 0 . 0 d B
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
Bus assignment and
crosspoint gain settings
(next page)
screen when the
shift key is pressed.
40
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8.19. Bus Assignment and Crosspoint Gain Settings
[Screen display operations]
Input channel gain settings (previous page) or Input channel group trim gain settings (previous page)
Bass assignment
Crosspoint gain
[
[
I
N
1
]
]
A S S
I
G N
[
I
N
1
]
G A
I
N
O U T 1
–
–
–
–
–
–
–
– M
O U T 1
0 d B
8.19.1. Bus assignment settings
Set input-to-output signal paths.
• Rotate the Setting knob to select the output channel bus (1 – 8 or
MicB*), then press the function ON/OFF key to enable or disable
the assignment.
CHANGE
PARAMETER
[ I N 1 ] A S S I G N
ON
[ O U T 1 ] – – – – – – – – M
* Microphone bus : The "M" indication is displayed when enabled.
PUSH-ENTER
[Setting example]
[ I N 1 ] A S S I G N
[ O U T 1 ] 1 2 3 – – – – – M
• Pressing an Input channel selector key permits the bus
assignment to be set for that channel. The [IN 1] indication
changes to the selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
Note
The bus assignment settings can also be performed using only the input/output channel controls on the front
panel.
(Example: Input channel 1 → Output channels 5 and 8)
Press the desired Output channel selector
key(s) while holding down the Input channel
selector key.
PEAK
1
4
5
6
7
1
2
3
4
5
6
7
8
+12dB
+6dB
0dB
8
9
-6dB
10
11
12
-12dB
-20dB
-40dB
The set output channel's indicator [SEL] lights.
SEL
SEL SIG
SEL
Pressing the microphone bus selector key sends
the signal from the selected input channel to the
microphone bus.
FBS
0N
SIG SEL
ON
EFFECT
ON
INPUT
MIC BUS
OUTPUT
Tip
The channel is simultaneously assigned to both L and R channels when assigned from "stereo-linked" input
channels to "stereo-linked" output channels. (Refer to p. 56 Stereo Link Settings.)
[Example] When Inputs 1 and 2 and outputs 1 and 2 are both "stereo-linked," pressing the Input Channel 1
selector key and Output Channel 1 selector key sets the assignment of Input 1 → Output 1 and Input 2 →
Output 2, causing the Output Channels 1 and 2 indicators [SEL] to light.
8.19.2. Crosspoint gain settings
• Rotate the Setting knob to set the crosspoint gain.
CHANGE
PARAMETER
Parameter setting range: –INF (–∞) to 0 dB in 1 dB steps
[ I N 1 ] G A I N
• Pressing an Input channel selector key permits the input channel
selection.
ON
O U T 1 ]
0 d B
PUSH-ENTER
• Pressing an Output channel selector key permits the output
channel selection.
• Pressing the function ON/OFF key enables or disables the
selected assignment.
41
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9. OUTPUT SETTINGS
Output channels selected with the Output channel selector keys can be enabled or disabled using the output
channel ON/OFF key. Use the function ON/OFF key to enable or disable each function displayed on the LCD
screen.
9.1. Output Channel Gain Settings
• Rotate the Setting knob to set the output channel gain.
CHANGE
PARAMETER
Parameter setting range: –INF (–∞) to +10 dB
[ O U T 1 ] F A D E R
• Press the function ON/OFF key to enable or disable the
displayed channel.
ON
O N
0 . 0 d B
PUSH-ENTER
• Pressing an Output channel selector key permits the gain to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
Filter settings (p. 45),
Output channel group
trim gain settings (next
section), or Crossover
settings (next page)
9.2. Output Channel Group Trim Gain Settings (Only when Group is set)
• The indication at left is displayed only when Group setting is
CHANGE
PARAMETER
performed. Perform the Group settings on the Utility setting
screen (p. 56).
[ O U T 1 ] G R - T R I M
+ 0 . 0 d B
• Rotate the Setting knob to set the group trim gain (offset gain).
Parameter setting range: –INF (–∞) to +10 dB in 0.1 dB steps
• Pressing an Output channel selector key permits the group trim
gain to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
Crossover settings
(next page) or
Filter settings (p. 45)
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9.3. Crossover Settings (Only when Crossover function is enabled)
The following screens are displayed only when the crossover function is enabled on the Utility setting screen.
(Refer to p. 62 for more information.)
[Screen display operations]
Output channel gain settings
(previous page) or
Output channel group trim
gain settings (previous page)
(Displayed when parameters other than THRU are selected)
(Displayed depending on the type of slope)
Slope
Cutoff frequency
Q
Q2
[
O U T 1
T Y P E
]
X O V E R
T H R U
-
H F
[
O U T 1
F R E Q
]
X O V E R
-
H F
[
O U T 1
]
X O V E R
-
H F
0
[
O U T 1
Q 2
]
X O V E R
-
H F
0
To A
(High frequency)
1
.
0
0
k H z
Q
0
.
5
0
0
.
5
0
Crossover gain
Crossover filter polarity
[
O U T 1
G A
]
X O V E R
+ 0
-
H F
[
O U T 1
P O L
]
X O V E R
-
H F
A
I
N
.
0 d B
N O R M A L
(Displayed when parameters other than THRU are selected)
(Displayed depending on the type of slope)
[
O U T 1
T Y P E
]
X O V E R
T H R U
-
L F
[
O U T 1
F R E Q
]
X O V E R
-
L F
[
O U T 1
Q
]
X O V E R
-
L F
0
[
O U T 1
Q 2
]
X O V E R
-
L F
0
To B
(Low frequency)
1
.
0
0
k H z
0
.
5
0
0
.
5
0
[
O U T 1
]
X O V E R
+ 0
-
L F
[
O U T 1
P O L
]
X O V E R
-
L F
B
G A
I
N
.
0 d B
N O R M A L
Filter settings (p. 45)
9.3.1. Slope settings
• Rotate the Setting knob to select the type of slope.
(High frequency)
CHANGE
PARAMETER
Parameter setting range: THRU (through), 6 dB (6 dB/oct), 12BS
(12 dB/oct BS), etc. (Refer to p. 87 for
more information.)
[ O U T 1 ] X O V E R - H F
T Y P E
T H R U
PUSH-ENTER
Notes
(Low frequency)
CHANGE
PARAMETER
(1) Slope type: BS (Bessel), BW (Butterworth), LR (Linkwitz-
[ O U T 1 ] X O V E R - L F
T Y P E T H R U
Riley), VQ (Variable Q)
(2) Displayed slope type differs depending on the Crossover
configuration setting. (Refer to p. 62.)
PUSH-ENTER
• Using the
shift key, the display is moved to the Crossover
Gain setting screen if THRU is selected, and to the Cutoff
Frequency setting screen if parameters other than THRU are set.
• Pressing an Output channel selector key permits the crossover
filter to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
43
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9.3.2. Cutoff frequency settings
• Rotate the Setting knob to set the cutoff frequency.
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the crossover
filter to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
(High frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - H F
F R E Q
1 . 0 0 k H z
PUSH-ENTER
(Low frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - L F
F R E Q 1 . 0 0 k H z
PUSH-ENTER
9.3.3. Q settings
• The Q setting can be performed only when the type of slope is
VQ.
• Rotate the Setting knob to set the Q.
Parameter setting range: 0.500 – 2.563 (51 points)
• Pressing an Output channel selector key permits the crossover
filter to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
(High frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - H F
Q
0 . 5 0 0
PUSH-ENTER
(Low frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - L F
0 . 5 0 0
Q
PUSH-ENTER
9.3.4. Q2 settings
• The Q2 setting can be performed only when the type of slope is
24VQ.
• Rotate the Setting knob to set the Q2.
Parameter setting range: 0.500 – 2.563 (51 points)
• Pressing an Output channel selector key permits the crossover
filter to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
(High frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - H F
Q 2
0 . 5 0 0
PUSH-ENTER
(Low frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - L F
Q 2 0 . 5 0 0
PUSH-ENTER
9.3.5. Crossover gain settings
• Rotate the Setting knob to set the crossover gain.
Parameter setting range: –15 to +15 dB in 0.1 dB steps
• Pressing an Output channel selector key permits the crossover
filter to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
(High frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - H F
G A I N
+ 0 . 0 d B
PUSH-ENTER
(Low frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - L F
G A I N + 0 . 0 d B
PUSH-ENTER
9.3.6. Crossover filter polarity settings
• Rotate the Setting knob to set the crossover filter polarity.
Parameter setting range: NORMAL and INVERSE
• Pressing an Output channel selector key permits the crossover
filter to be set for that channel. The [OUT 1] indication changes to
the selected channel number indication.
(High frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - H F
P O L
N O R M A L
PUSH-ENTER
(Low frequency)
CHANGE
PARAMETER
[ O U T 1 ] X O V E R - L F
P O L
N O R M A L
PUSH-ENTER
44
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9.4. Filter Settings
ON
When any of the following screens is displayed, the filter function for the displayed channel can be
enabled or disabled by pressing the function ON/OFF key. When enabled (ON), the function
ON/OFF Indicator lights.
[Screen display operations]
Output channel gain settings (p. 42), Output channel group
trim gain settings (p. 42), or Crossover settings (p. 43)
Filter 1 settings (Type selection)
[
[
[
[
O U T 1
T Y P E
]
]
]
F
I
L T E R 1
T H R U
CHANGE
PARAMETER
Gain
Center frequency
Q
PUSH-ENTER
[
O U T 1
G A
]
F
I
L T E R 1
+ 0 0 d B
[
O U T 1
F R E Q
]
]
]
F
F
F
I
L T E R 1
k H z
[
O U T 1
]
F
I
L T E R 1
O U T 1
T Y P E
F
I
L T E R 1
Parametric equalizer
High-pass filter (6 dB)
High-pass filter (12 dB)
Low-pass filter (6 dB)
Low-pass filter (12 dB)
High shelving filter
Low shelving filter
Horn equalizer
I
N
.
1
.
0
0
Q
0
.
2
6
7
P E Q
CHANGE
PARAMETER
Cutoff frequency
PUSH-ENTER
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
O U T 1
F
I
L T E R 1
1
.
0
0
T Y P E H P F
-
6 d B
CHANGE
PARAMETER
Cutoff frequency
Q
PUSH-ENTER
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
[
O U T 1
Q
I L T E R 1
O U T 1
]
F
I
L T E R 1
2 d B
1
.
0
0
0
.
5
0
0
T Y P E H P F
-
1
CHANGE
PARAMETER
Cutoff frequency
PUSH-ENTER
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
[
[
[
[
O U T 1
]
F
I
L T E R 1
1
.
0
0
T Y P E L P F
-
6 d B
CHANGE
PARAMETER
Q
Cutoff frequency
PUSH-ENTER
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
[
O U T 1
Q
I L T E R 1
O U T 1
]
F
I
L T E R 1
1
.
0
0
0
.
5
0
0
T Y P E L P F
-
1
2 d B
CHANGE
PARAMETER
Gain
Roll-off frequency
PUSH-ENTER
[
O U T 1
G A
]
]
F
F
I
I
L T E R 1
+ 0 0 d B
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
O U T 1
T Y P E
]
]
F
-
I
L T E R 1
I
N
.
6
.
0
0
H
L
S h e
l
v
CHANGE
PARAMETER
Gain
Roll-off frequency
PUSH-ENTER
[
O U T 1
G A
L T E R 1
+ 0 0 d B
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
O U T 1
T Y P E
F
-
I
L T E R 1
I
N
.
6
.
0
0
S h e
l
v
CHANGE
PARAMETER
Gain
PUSH-ENTER
[
[
O U T 1
]
F
I
L T E R 1
[
O U T 1
G A
]
F
I
L T E R 1
+ 0 0 d B
T Y P E H O R N E Q
I
N
.
CHANGE
PARAMETER
Center frequency
Q
PUSH-ENTER
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
[
O U T 1
Q
]
]
F
F
I
I
L T E R 1
O U T 1
T Y P E
]
F
I
L T E R 1
Notch filter
1
.
0
0
8
.
6
5
1
N O T C H
CHANGE
PARAMETER
Center frequency
Q
PUSH-ENTER
All-pass filter
[
O U T 1
F R E Q
]
F
I
L T E R 1
k H z
[
O U T 1
Q
L T E R 1
[
O U T 1
]
F
I
L T E R 1
1
.
0
0
0
.
2
6
7
T Y P E A L L P A S S
* The number of displayed filters differs
depending on the crossover configuration
settings on the Utility setting screen. (Refer
to p. 62.)
Filter 6* settings (Type selection)
Compressor settings (p. 50)
Tip
Filters range from 1 to 6 in number, and the setting items for each filter are the same. Press the
keys to change the filter number.
and
shift
45
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[Setting procedures (Example of setting output 1 – filter 2 as a horn equalizer)]
[ O U T 1 ] F I L T E R 1
T Y P E
T H R U
1
[ O U T 1 ] F I L T E R 2
T Y P E
T H R U
CHANGE
PARAMETER
2
PUSH-ENTER
3
[ O U T 1 ] F I L T E R 2
[ O U T 1 ] F I L T E R 2
T Y P E H O R N E Q
G A I N
+ 0 . 0 d B
CHANGE
PARAMETER
4
PUSH-ENTER
[ O U T 1 ] F I L T E R 2
G A I N + 4 . 0 d B
Step 1. Press the
shift key to display a filter.
Step 2. Rotate the Setting knob to select the type of filter.
Step 3. Press the shift key to display the setting items for the selected filter.
Step 4. Rotate the Setting knob to set the parameters for each item.
Step 5. Repeat Steps 3 and 4 when there are two or more setting items.
46
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9.4.1. Parametric equalizer
• Rotate the Setting knob to select PEQ and enter the Parametric
Equalizer setting screen.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
T Y P E
P E Q
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
[Gain settings]
• Rotate the Setting knob to set the gain.
CHANGE
PARAMETER
Parameter setting range: –15 to +15 dB in 0.1 dB steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
[ O U T 1 ] F I L T E R 1
G A I N
+ 0 . 0 d B
PUSH-ENTER
[Center frequency settings]
• Rotate the Setting knob to set the center frequency.
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
F R E Q
1 . 0 0 k H z
PUSH-ENTER
[Q settings]
• Rotate the Setting knob to set the Q.
CHANGE
PARAMETER
Parameter setting range: 0.267 – 69.249 (96 points)
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
[ O U T 1 ] F I L T E R 1
0 . 2 6 7
Q
PUSH-ENTER
9.4.2. High-pass filter
• Rotate the Setting knob to select either HPF-6 dB or HPF-12 dB
and enter the High-Pass Filter setting screen.
The indications of 6 dB and 12 dB represent the slope: 6 dB/oct
and 12 dB/oct, respectively.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
T Y P E H P F - 6 d B
PUSH-ENTER
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
[Cutoff frequency settings]
• Rotate the Setting knob to set the cutoff frequency.
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
F R E Q
1 . 0 0 k H z
PUSH-ENTER
47
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[Q settings]
• The Q setting can only be performed when HPF-12 dB is
selected.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
• Rotate the Setting knob to set the Q.
Q
1 . 0 0 0
Parameter setting range: 0.500 – 2.563 (51 points)
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
PUSH-ENTER
9.4.3. Low-pass filter
• Rotate the Setting knob to select either LPF-6 dB or LPF-12 dB,
and enter the Low-Pass Filter setting screen.
The indications of 6 dB and 12 dB represent the slope: 6 dB/oct
and 12 dB/oct, respectively.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
T Y P E L P F - 6 d B
PUSH-ENTER
• Setting items, parameter setting ranges and operations are the
same as those for the high-pass filter.
9.4.4. High shelving filter
• Rotate the Setting knob to select H-Shelv and enter the High
Shelving Filter setting screen.
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
T Y P E H - S h e l v
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
[Gain settings]
• Rotate the Setting knob to set the gain.
CHANGE
PARAMETER
Parameter setting range: –15 to +15 dB in 0.1 dB steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
[ O U T 1 ] F I L T E R 1
G A I N
+ 0 . 0 d B
PUSH-ENTER
[Roll-off frequency settings]
• Rotate the Setting knob to set the roll-off frequency.
Parameter setting range: 6 – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
F R E Q
6 . 0 0 k H z
PUSH-ENTER
9.4.5. Low shelving filter
• Rotate the Setting knob to select L-Shelv and enter the Low
Shelving Filter setting screen.
• Setting items and operations are the same as those for the high
shelving filter.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
T Y P E L - S h e l v
PUSH-ENTER
• Parameter setting range
Gain: –15 to +15 dB in 0.1 dB steps
Roll-off frequency: 20 – 500 Hz in 1/24 octave steps
48
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9.4.6. Horn equalizer
• Rotate the Setting knob to select HORN EQ and enter the Horn
Equalizer setting screen.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
T Y P E
H O R N E Q
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
[Gain settings]
• Rotate the Setting knob to set the gain.
CHANGE
PARAMETER
Parameter setting range: 0 to +18 dB in 0.5 dB steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
[ O U T 1 ] F I L T E R 1
G A I N
+ 0 . 0 d B
PUSH-ENTER
9.4.7. Notch filter
• Rotate the Setting knob to select NOTCH and enter the Notch
Filter setting screen.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
T Y P E
N O T C H
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
[Center frequency settings]
• Rotate the Setting knob to set the center frequency.
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
F R E Q
1 . 0 0 k H z
PUSH-ENTER
[Q settings]
• Rotate the Setting knob to set the Q.
CHANGE
PARAMETER
Parameter setting range: 8.651 – 69.249 (Refer to p. 87 for more
information.)
[ O U T 1 ] F I L T E R 1
8 . 6 5 1
Q
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
PUSH-ENTER
9.4.8. All-pass filter
• Rotate the Setting knob to select ALL PASS and enter the All-
Pass Filter setting screen.
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
T Y P E A L L P A S S
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
49
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[Center frequency settings]
• Rotate the Setting knob to set the center frequency.
Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
CHANGE
PARAMETER
[ O U T 1 ] F I L T E R 1
F R E Q
1 . 0 0 k H z
PUSH-ENTER
[Q settings]
• Rotate the Setting knob to set the Q.
CHANGE
PARAMETER
Parameter setting range: 0.267 – 69.249 (96 points)
• Pressing an Output channel selector key permits the filter to be
set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
[ O U T 1 ] F I L T E R 1
0 . 2 6 7
Q
PUSH-ENTER
9.5. Compressor Settings
ON
When any of the following screens is displayed, the compression function for the displayed channel
can be enabled or disabled with the function ON/OFF key. When enabled (ON), the function
ON/OFF Indicator lights.
[Screen display operations]
Filter settings (P. 45)
Threshold level
Ratio
Attack time
Release time
Makeup gain
[
O U T 1
]
C OM P
+ 0 d B
[
O U T 1
R A T
]
C OM P
[
O U T 1
]
C OM P
[
O U T 1
]
C OM P
[
O U T 1
G A
]
C OM P
T H R E S H
I
O
1
:
1
A T T A CK
1
0
.
0
m
s
R E L E AS E
5
0
0
m
s
I
N
+ 0 d B
Delay time settings (next page)
9.5.1. Threshold level settings
• Rotate the Setting knob to set the threshold level.
CHANGE
PARAMETER
Parameter setting range: –20 to +20 dB in 1 dB steps
[ O U T 1 ] C OM P
• Pressing an Output channel selector key permits the compressor
threshold level to be set for that channel. The [OUT 1] indication
changes to the selected channel number indication.
T H R E S H
+ 0 d B
PUSH-ENTER
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
9.5.2. Ratio settings
• Rotate the Setting knob to set the ratio.
CHANGE
PARAMETER
Parameter setting range: 1:1, 2:1, 3:1, 4:1, 8:1, 12:1, 20:1, INF
(∞):1
• Pressing an Output channel selector key permits the
compression ratio to be set for that channel. The [OUT 1]
indication changes to the selected channel number indication.
[ O U T 1 ] C OM P
R A T I O
1 : 1
PUSH-ENTER
50
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9.5.3. Attack time settings
• Rotate the Setting knob to set the attack time.
Parameter setting range: 0.2 ms – 5 s (Refer to p. 85 for more
information.)
CHANGE
PARAMETER
[ O U T 1 ] C OM P
A T T A CK
1 0 . 0
m
s
• Pressing an Output channel selector key permits the compressor
attack time to be set for that channel. The [OUT 1] indication
changes to the selected channel number indication.
PUSH-ENTER
9.5.4. Release time settings
• Rotate the Setting knob to set the release time.
Parameter setting range: 10 ms – 5 s (Refer to p. 85 for more
information.)
CHANGE
PARAMETER
[ O U T 1 ] C OM P
R E L E AS E
5 0 0
m
s
• Pressing an Output channel selector key permits the compressor
release time to be set for that channel. The [OUT 1] indication
changes to the selected channel number indication.
PUSH-ENTER
9.5.5. Makeup gain settings
• Rotate the Setting knob to set the makeup gain.
CHANGE
PARAMETER
Parameter setting range: –INF (–∞) to +10 dB in 1 dB steps.
• Pressing an Output channel selector key permits the
compression makeup gain to be set for that channel. The [OUT 1]
indication changes to the selected channel number indication.
[ O U T 1 ] C OM P
G A I N
+ 0 d B
PUSH-ENTER
9.6. Delay Time Settings
Compressor settings
(previous page)
• Rotate the Setting knob to set the delay time.
CHANGE
PARAMETER
Parameter setting range: 0 – 682.6 ms in 0.021 ms steps
• Press the function ON/OFF key to enable or disable the delay
function.
[ O U T 1 ] D E L A Y
ON
O F F
0 . 0 0 0
m
s
PUSH-ENTER
• Pressing an Output channel selector key permits the delay time
to be set for that channel. The [OUT 1] indication changes to the
selected channel number indication.
• The setting screen reverts to the Input/Output Gain Setting
screen when the
shift key is pressed.
51
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10. MICROPHONE BUS SETTINGS
SEL
The Microphone Bus setting screen is displayed when the Microphone Bus selector key is pressed.
10.1. Feedback Suppression Settings
[Suppressing acoustic feedback with a simple operation]
Step 1. Set the volume controls of connected external equipment to the state in which they will actually be
used.
Step 2. Activate the Auto mode on the Feedback Suppression setting screen. (Refer to the next page.)
All filters (12 bands) that suppress feedback are set after they are initialized.
Notes
• Auto mode cannot be initiated if the number of Auto mode filters is set to 0. (Refer to the next page.)
• Large sounds are produced during Auto mode operation.
• Setting takes about 1.5 minutes. (This may differ depending on the unit installation circumstances.)
• No keys can be used during Auto mode operation. Press the Setting knob to interrupt setup
operations.
[Settings to be performed as required]
Step 3. Set the Dynamic mode or the number of filters on the Feedback Suppression setting screen, or
perform individual settings on the Feedback Suppression Filter setting screen as required.
Notes
• When the number of filters to be used for the Auto and Dynamic modes have been changed,
reactivate the Auto mode.
• Take care when executing filter initialization, as feedback may occur.
• It is recommended that the Auto mode be reset when the equalizer setting value has been changed,
because the feedback points may change.
[Screen display operations]
Auto mode
activation
Dynamic mode
filter initialization
Auto mode filter
initialization
Dynamic mode
Filters number
[ M
i
c B
]
F B S
C
[ M
i
c B
]
F B S
[ M
i
c B
]
:
F B S
D Y N
[ M
i
c B
]
F B S
[ M
i
c B
]
F B S
D Y N A M
I
O F F
A U T O S T A R T O K ?
A U T O
7
:
5
C L E A R D Y N
O K ?
C L E A R A U T O O K ?
Feedback suppression filter setting confirmation (p. 54)
10.1.1. Dynamic mode settings
• Press the function ON/OFF key to enable or disable the feedback
suppression function.
• Enabling the function permits feedback to be suppressed in real
time as it occurs. (Dynamic mode)
[ M i c B ] F B S
D Y N A M I C
ON
O F F
52
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10.1.2. Auto mode activation
• Press the Setting knob to automatically search for the feedback
points and set the filters for feedback suppression. (Auto mode)
• Both the FBS (Feedback suppression) and the LOCK (System
lock) indicators flash during Auto mode operation.
CHANGE
PARAMETER
[ M i c B ] F B S
A U T O S T A R T O K ?
PUSH-ENTER
• To interrupt the Auto mode operation, press the Setting knob.
• When the number of filters is set to "0" for Auto mode, the
indication "Can't use Auto" is displayed on the LCD screen,
disabling the Auto mode activation.
• To cancel the function, press the
or
shift key, and the
screen changes to display the previous or next setting item.
10.1.3. Filter number settings
• Rotate the Setting knob to set the number of filters to be used for
Auto and Dynamic modes.
• Filters are assigned to both modes from 12 filters in total.
• Filters used for Auto and Dynamic modes are assigned to Auto
mode followed by Dynamic mode in order of filter number as
shown below.
CHANGE
PARAMETER
[ M i c B ] F B S
A U T O : D Y N
7 : 5
PUSH-ENTER
[Example for "AUTO : DYN 7 : 5" (default setting)]
Filter No.
Mode
1
2
3
4
5
6
7
8
9
10 11 12
Auto mode
Dynamic mode
[Example for "AUTO : DYN 8 : 4"]
Filter No.
Mode
1
2
3
4
5
6
7
8
9
10 11 12
Auto mode
Dynamic mode
• Even when the number of filters is changed, filters are not
initialized.
For example, when filter assignment is changed from "AUTO :
DYN 7 : 5" to "AUTO : DYN 8 : 4" (refer to the above setting
examples), Filter 8 operation mode is switched to Auto mode,
however, keeping the filter parameters once set by Dynamic
mode operation.
The Filter parameters and Mode confirmation display (next page)
remain unchanged as those for Dynamic mode till Auto mode is
activated.
10.1.4. Dynamic mode filter initialization
• All filters set for the Dynamic mode are initialized when the
Setting knob is pressed.
CHANGE
PARAMETER
[ M i c B ] F B S
• To cancel the function, press the
screen changes to display the previous or next setting item.
or
shift key, and the
C L E A R D Y N
O K ?
PUSH-ENTER
10.1.5. Auto mode filter initialization
• All filters set for the Auto mode are initialized when the Setting
knob is pressed.
CHANGE
PARAMETER
[ M i c B ] F B S
• To cancel the function, press the
returns to display the previous setting item.
shift key, and the screen
C L E A R A U T O O K ?
PUSH-ENTER
53
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10.2. Feedback Suppression Filter Setting Confirmation
The settings of all 12 Dynamic and Auto mode feedback suppression filters can be quickly confirmed.
[Screen display operations]
Feedback suppression settings (p. 52)
Frequency
confirmation
Filter 1 mode
confirmation
Filter gain
confirmation
Q confirmation
[ M
i
c B
]
F
1
I
L T E R 1
k H z
[ M
i
c B
]
F
I
L T E R 1
[ M
i
c B
]
F
I
L T E R 1
[ M
Q
i
c B
]
F
I
L T E R 1
F R E Q
0
.
0
G A
I
N
+ 0 0 d B
.
T Y P E
A U T O
4
8
.
0
9
Tip
Feedback suppression filters range from 1 to 12 in number, and the setting
Filter 12 mode confirmation
items for each filter are the same. Press the
filter number.
and
shift keys to change the
Effect (echo) settings (next page)
10.2.1. Mode confirmation
• The DYN indication is displayed for filters set by the Dynamic
mode operation, while the AUTO indication is displayed for filters
[ M i c B ] F I L T E R 1
set by the Auto mode operation, and the "
filters that are not set.
----" indication for
T Y P E
A U T O
10.2.2. Frequency confirmation
• Set filter frequencies can be confirmed.
[ M i c B ] F I L T E R 1
F R E Q
1 0 . 0 k H z
10.2.3. Filter gain confirmation
• Set filter gains can be confirmed.
[ M i c B ] F I L T E R 1
G A I N
+ 0 . 0 d B
10.2.4. Q confirmation
• Set filter Q can be confirmed.
[ M i c B ] F I L T E R 1
Q
3 4 . 6 2
54
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10.3. Effect (Echo) Settings
The D-901 has an echo function, a part of an effect function.
• The Effect (echo) setting screen can be displayed by pressing the Effect key, or by using the
EFFECT
Screen shift keys on the Microphone Bus setting screen.
ON
• The effect (echo) function can be enabled or disabled with the function ON/OFF key or Effect key
when any of the following screens is displayed.
• The function ON/OFF and Effect indicators light when enabled (ON).
[Screen display operations]
Feedback suppression filter setting confirmation (previous page)
Low-pass filter
frequency
Feedback ratio
Feedback delay
Echo gain
Initial echo delay
Low-pass filter Q
[ M
i
c B
]
E C H O
[ M
i
c B
]
E C H O
[ M
i
c B
]
E C H O
1
[ M
P
i
c B
]
E C H O
[ M
i
c B
]
E C H O
[ M
i
c B
]
E C H O
O U T G A
I
N
–
1
0 d B
F B R A T
I
O
3
0
%
F B D L Y
2
0
m
s
r
e D L Y
8
0
m
s
L P F
-
F
3
.
7
5
k
H
z
L P F
-
Q
0
.
5
0
0
Bus assignment and crosspoint gain settings (next page)
[Effect (echo) function block diagram]
To feedback suppression
Echo gain
Pre-delay
LPF
Feedback delay
Feedback ratio
10.3.1. Echo gain settings
• Rotate the Setting knob to set the echo gain.
CHANGE
PARAMETER
Parameter setting range: –INF (–∞) to 0.0 dB in 1 dB steps
[ M i c B ] E C H O
O U T G A I N
– 1 0 d B
PUSH-ENTER
10.3.2. Feedback ratio settings
• Rotate the Setting knob to set the feedback ratio.
CHANGE
PARAMETER
Parameter setting range: 0 – 99% in 1% steps
[ M i c B ] E C H O
F B R A T I O
3 0
%
PUSH-ENTER
10.3.3. Feedback delay settings
• Rotate the Setting knob to set the feedback delay time.
CHANGE
PARAMETER
Parameter setting range: 0 – 682 ms
[ M i c B ] E C H O
F B D L Y 1 2 0
m
s
PUSH-ENTER
55
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10.3.4. Initial echo (pre-) delay settings
• Rotate the Setting knob to set the initial echo delay time.
CHANGE
PARAMETER
Parameter setting range: 0 – 682 ms
[ M i c B ] E C H O
P r e D L Y
8 0
m
s
PUSH-ENTER
10.3.5. Low-pass filter frequency settings
• Rotate the Setting knob to set the low-pass filter frequency.
CHANGE
PARAMETER
Parameter setting range: 20 Hz – 20 kHz
[ M i c B ] E C H O
L P F - F
3 . 7 5 k
H
z
PUSH-ENTER
10.3.6. Low-pass filter Q settings
• Rotate the Setting knob to set the low-pass filter Q.
CHANGE
PARAMETER
Parameter setting range: 0.500 – 2.563 (51 points)
[ M i c B ] E C H O
L P F - Q
0 . 5 0
0
PUSH-ENTER
10.4. Bus Assignment and Crosspoint Gain Settings
→
(Microphone Bus
Output Channel)
[Screen display operations]
Effect (echo) settings (previous page)
Crosspoint gain
Bus assignment
[ M
i
c B
]
]
A S S
I
G N
[ M
i
c B
]
G A
I
N
[
O U T 1
1
2
3
4
5
6
7
8
O U T 1
0 d
B
10.4.1. Bus assignment settings
• Rotate the Setting knob to select the output channel bus (1 – 8),
then press the function ON/OFF key to enable or disable the
assignment. When disabled (OFF), the "–" indication is displayed.
• All buses 1 – 8 are enabled by default.
CHANGE
PARAMETER
[ M i c B ] A S S I G N
ON
[ O U T 1 ] 1 2 3 4 5 6 7 8
PUSH-ENTER
10.4.2. Crosspoint gain settings
• Rotate the Setting knob to set the crosspoint gain.
Parameter setting range: –INF (–∞) to 0 dB in 1 dB steps
• Pressing an Input channel selector key permits the input channel
selection.
CHANGE
PARAMETER
[ I N 1 ] G A I N
ON
O U T 1 ]
0 d B
PUSH-ENTER
• Pressing an Output channel selector key permits the Output
channel selection.
• Pressing the function ON/OFF key enables or disables the
selected assignment.
56
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11. PRESET MEMORY SETTINGS
PRESET
The preset setting screen is displayed when the Preset key is pressed.
Pressing the key again exits the preset setting screen in any of the following settings, displaying the
Input/Output Gain Setting screen.
11.1. Preset Memory Save
Set parameters can be stored in memory (number of memories: 16).
[Parameters that can be stored in memory]
Input channel parameters:
PAD, Phantom power, Line input mode selection, Line input selection, Input trim
gain, Input trim polarity, High-pass filter, Equalizer (low and high frequencies),
Compressor/auto-leveler mode selection, Compressor/auto-leveler, Level
sense, Gate, Auto-mixing group, Ducker, NOM attenuation ON/OFF, Input
channel gain, Channel ON/OFF, Group trim gain, and Bus assignment
Output channel parameters: Output channel gain, Group trim gain, Channel ON/OFF, Filters 1 – 6 (including
crossover), Compressor, and Delay
Microphone bus parameters: Feedback suppression (Dynamic mode ON/OFF, Filter number, and Filter
parameters set in Auto and Dynamic modes), Echo, and Bus assignment
Others:
Stereo link, Group, Crossover configuration, NOM attenuation, and Channel
selection status
Step 1. Press the
and
shift keys to select the desired preset memory
[ P R E S E T ] S A V E
N o . O K ?
number.
1
Preset memory
number 1 selection
Preset memory
number 2 selection
Preset memory
number 16 selection
[
P R E S E T
N o
]
S A V E
O K ?
[
P R E S E T
N o
]
S A V E
O K ?
[
P R E S E T
N o
]
S A V E
O K ?
.
1
.
2
.
1
6
Step 2. Press the Setting knob to execute the function.
The indication "Now Saving..." is displayed and saving begins.
Saving is completed when the indication turns off.
CHANGE
PARAMETER
Preset memory recall
(next page)
[ P R E S E T ]
N o w S a v i n g . . .
PUSH-EN
Note: To cancel the function, press the Preset key.
57
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11.2. Preset Memory Recall
Recall the stored preset memory.
Preset memory save
(previous page)
Step 1. Press the
and
shift keys to select the desired preset memory
[ P R E S E T ] L O A D
N o . O K ?
number.
1
Preset memory
number 1 selection
Preset memory
number 2 selection
Preset memory
number 16 selection
[
P R E S E T
N o
]
L O A D
O K ?
[
P R E S E T
N o
]
L O A D
O K ?
[
P R E S E T
N o
]
L O A D
O K ?
.
1
.
2
.
1
6
Tip
The screen at left can be recalled for preset memory numbers 1 – 8
by simply pressing the desired Preset Memory selector key,
regardless of the currently displayed setting screen. However, the
display cannot be switched to another screen by way of the
keys.
and
Step 2. Press the Setting knob to execute the function.
The indication "Now Loading..." is displayed and loading begins.
Recall is completed when the indication turns off.
CHANGE
PARAMETER
[ P R E S E T ]
N o w L o a d i n g . . .
PUSH-EN
Note: To cancel the function, press the Preset key.
11.3. Preset Memory Delete
Delete the stored preset memory.
Step 1. Press the
to be deleted.
and
shift keys to select the preset memory number
[ P R E S E T ] D E L E T E
N o . O K ?
1
Preset memory
number 1 selection
Preset memory
number 2 selection
Preset memory
number 16 selection
[
P R E S E T
N 0
]
D E L E T E
O K ?
[
P R E S E T
N o
]
D E L E T E
O K ?
[
P R E S E T
N o
]
D E L E T E
O K ?
.
1
.
2
.
1
6
Step 2. Press the Setting knob to execute the function.
The indication "Now Deleting..." is displayed and deletion begins.
Deletion is completed when the indication turns off.
Preset memory crossfade
time settings (next page)
CHANGE
PARAMETER
[ P R E S E T ]
N o w D e l e t i n g . . .
PUSH-EN
Note: To cancel the function, press the Preset key.
58
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11.4. Preset Memory Crossfade Time Settings
Set the crossfade time when the currently selected preset memory is switched over to a newly recalled one by
pressing the preset memory number.
[Parameters to be cross-faded]
Input/output channel gains, channel ON/OFF, bus assignment, cross-point gains.
Parameters other than those above instantaneously switch when the preset memory is recalled.
Note
When the currently selected preset memory is switched over to a newly recalled one, the channels of which
phantom power ON/OFF, PAD, line input mode, and line input selection have been changed are muted for a
specified period of time.
Preset memory
delete (previous page)
[Setting example]
1
[ P R E S E T ] F A D E
A L L N o . 0 . 0 s e c
[ P R E S E T ] F A D E
N o . 1 0 . 0 s e c
[ P R E S E T ] F A D E
N o . 2 0 . 0 s e c
CHANGE
PARAMETER
2
PUSH-ENTER
Initial preset memory
selection (next page)
[ P R E S E T ] F A D E
N o . 2 3 . 5 s e c
CHANGE
PARAMETER
3
PUSH-EN
Step 1. Press the
and
shift keys to select the desired preset memory number.
Note
On the [All No.] screen, crossfade time of all memories can be set at a time.
The following screen appears when each memory setting is different.
[ P R E S E T ] F A D E
A L L N o .
- - - - s e c
Step 2. Rotate the Setting knob to change the crossfade time.
Parameter setting range: 0.0 – 10.0 s, 0.5 s steps
Tips
• Saving the configuration (see the next page) causes the parameters to be cross-faded to change at the set
crossfade time.
• Configuration can also be saved by pressing the Setting knob on this screen.
• To cancel the function, press the Preset key.
59
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11.5. Initial Preset Memory Selection
Select the preset memory number (1 – 16) or LAST MEMORY to be automatically recalled when the power is
switched on.
Preset memory crossfade time settings (previous page)
LAST MEMORY
selection
Preset memory
number 1 selection
Preset memory
number 16 selection
[
P R E S E T
]
S T A R T
[
P R E S E T
N o
]
S T A R T
[
P R E S E T
N o
]
S T A R T
L A S T M E MO R Y
.
1
.
1
6
Configuration Save (next section)
• Press the
and
shift keys to select the desired preset
[ P R E S E T ] S T A R T
L A S T M E MO R Y
memory number to be automatically recalled when the power is
switched on.
• Setting the LAST MEMORY permits the preset memory number
recalled last before the unit's power-off to be automatically
recalled at the power-on.
Note
The preset memory is set to LAST MEMORY by default, and the
preset memory No.1 is recalled.
• Performing the Configuration Save (next item) allows the
selected memory number to be saved as a preset memory
number recalled at unit's power-on operation. Be sure to perform
the Configuration Save after changing the preset number
selection.
• The Configuration save can also be executed by pressing the
Setting knob at this screen.
• To cancel the function, press the Preset key.
11.6. Configuration Save
Preset memory crossfade
time setteings (previous section)
• Pressing the Setting knob saves the settings for the Preset
Memory Crossfade Time, the Contact Input/Output functions,
Protect function, and Initial preset memory.
CHANGE
PARAMETER
[ C O N F I G ] S A V E
O K ?
PUSH-ENTER
• To cancel the function, press the Preset key.
60
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12. UTILITY SETTINGS
UTILITY
The utility setting screen is displayed when the Utility key is pressed.
12.1. Stereo Link Settings
• Rotate the Setting knob to select the channels to be "Stereo-
CHANGE
PARAMETER
Linked."
[ U T Y ] S T R L I N K
• Press the function ON/OFF key to enable or disable the Stereo-
Link setting.
ON
[ I N 1 ] [ I N 2 ]
PUSH-ENTER
[Setting example]
[ U T Y ] S T R L I N K
[ I N 1 ] = [ I N 2 ] O N
Note
The output channel that is enabled for crossover function - a
parameter except "NONE" is set - in the Crossover Configuration
Settings (p. 62) is displayed on the screen as follows, not being
set as a "Stereo-Linked" channel.
[ U T Y ] S T R L I N K
[ O U T 1 ] x [ O U T 2 ] – –
• The following "Stereo-Linked" channel parameter settings are
synchronized:
Input channel: PAD, Phantom power, Input trim gain, High-pass
filter, Parametric equalizer, Compressor/auto-
leveler*, Gate*, Auto-mixing group, Ducker, NOM
attenuation ON/OFF, Input channel gain,
Channel ON/OFF, and Group settings
Output channel: Output channel gain, Filters 1 – 6 (including
crossover), Compressor*, Delay, and Group settings
* Operations are also synchronized.
Tip
When the input channel and the output channel are both set for
Stereo Link, the bus assignment setting is also synchronized.
(Refer to p. 41.)
12.2. Group Settings
Stereo Link setting (above item)
By grouping multiple channels
together, the gains of these channels
can be simultaneously adjusted using
the Input or Output volume control.
[ U T Y ] G R O U P I N G
[ I N 1 ]
CHANGE
PARAMETER
Step 1. Rotate the Setting knob to
display the channels to be
grouped in the [ ] area on
the lower row.
1
2
PUSH-ENTER
[ U T Y ] G R O U P I N G
[ I N 3 ] – – 3 – – –
[ I N 3 ]
I N 1 ] – – – – – –
Step 2. Press the
shift key.
CHANGE
PARAMETER
4
ON
3
PUSH-ENTER
[ U T Y ] G R O U P I N G
[ I N 3 ] – – 3 4 – –
[ I N 3 ]
3 4
I N 4 ] – – – – – –
Crossover configuration (high frequency) settings (next page)
61
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Step 3. Rotate the Setting knob to select the channels to be grouped together with the channels displayed in
the [ ] area on the upper row.
(The selected channels are displayed in the "
]" area on the lower row.
Step 4. Press the function ON/OFF key to confirm the selected channels.
All of the channels set for grouping are displayed on the upper row at the right.
Note
When group settings are performed, the offset gain between the channels in the [ ] area on the
upper row and the selected channels are set as the selected channels' group trim value. Therefore,
after grouping, the fader gain is the same if the channels grouped together are within the same group.
Tip
The channels set for grouping are displayed on the lower row at the right when the
shift key is
pressed to revert to the initial Group setting screen.
12.3. Crossover Configuration Settings
Enable or disable the Crossover function. When enabling, set the crossover filter's maximum slope as well.
When enabled, the Crossover setting screen is displayed on the Output setting screen, depending on setting
contents. (Refer to p. 43.) Also, the number of filters to be displayed on the Filter setting screen (p. 45) used in
the output settings changes depending on the setting contents.
Note
(High frequency)
The "Stereo-Linked" (p. 61) output channel will not use the crossover function.
That output channel is displayed on the screen as shown at right, being made
invalid for the crossover configuration setting.
[ U T Y ] X O V E R – H F
[ O U T 1 ]
– – – –
(Low frequency)
Group settings (previous page)
[ U T Y ] X O V E R – L F
[ O U T 1 ] – – – –
2
(High frequency)
• The crossover function (high
frequency) is disabled.
[ U T Y ] X O V E R – H F
[ U T Y ] X O V E R – H F
[ O U T 1 ]
N O N E
[ O U T 1 ]
N O N E
• The Crossover setting screen is not
displayed.
CHANGE
PARAMETER
CHANGE
PARAMETER
1
3
PUSH-ENTER
PUSH-ENTER
• The crossover function (high
frequency) is used as a high-pass
filter. A slope of up to 12 dB/oct can
be set.
[ U T Y ] X O V E R – H F
[ O U T 1 ]
H P F 1 2
[ U T Y ] X O V E R – H F
[ O U T 8 ] N O N E
CHANGE
PARAMETER
• The Crossover setting screen is
displayed. (A slope of up to 12 dB/oct
is displayed.)
3
PUSH-ENTER
Crossover configuration (low frequency)
settings (next page)
• The crossover function (high
frequency) is used as a high-pass
filter. A slope of up to 24 dB/oct can
be set.
[ U T Y ] X O V E R – H F
[ O U T 1 ] H P F 2 4
• The Crossover setting screen is
displayed. (A slope of up to 24 dB/oct
is displayed.)
Step 1. Rotate the Setting knob to display the channel to be set
in the [ ] area on the lower row.
Step 2. Press the
shift key.
Step 3. Rotate the Setting knob to enable or disable the
crossover function.
62
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Crossover configuration
(high frequency) settings
(previous page)
(Low frequency)
[ U T Y ] X O V E R – L F
• The crossover function (low
frequency) is disabled.
[ U T Y ] X O V E R – L F
[ O U T 1 ]
N O N E
[ O U T 1 ]
N O N E
• The Crossover setting screen is
not displayed.
CHANGE
PARAMETER
CHANGE
PARAMETER
PUSH-ENTER
PUSH-ENTER
• The crossover function (low
frequency) is used as a low-pass
filter. A slope of up to 12 dB/oct
can be set.
• The Crossover setting screen is
displayed. (A slope of up to 12
dB/oct is displayed.)
[ U T Y ] X O V E R – L F
[ O U T 1 ]
L P F 1 2
[ U T Y ] X O V E R – L F
[ O U T 8 ] N O N E
CHANGE
PARAMETER
PUSH-ENTER
NOM attenuation settings
(next page)
• The crossover function (low
frequency) is used as a low-pass
filter. A slope of up to 24 dB/oct
can be set.
[ U T Y ] X O V E R – L F
[ O U T 1 ] L P F 2 4
• The Crossover setting screen is
displayed. (A slope of up to 24
dB/oct is displayed.)
Note
The setting method is the same as that used for the crossover
configuration (high frequency).
Number of filters usable for the Filter settings
The settings above determine the number of filters to be displayed on the Filter setting screen (p. 45) as
follows:
XOVER-H
Setting
NONE
HPF12
HPF24
XOVER-L
Setting
NONE
6
5
4
5
4
3
4
3
2
LPF12
LPF24
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12.4. NOM Attenuation Settings
NOM is an acronym of Number of Open Microphones, and represents the number of microphones in open
status (the number of input channels with open gates).
The NOM attenuation function automatically adjusts the open microphone's input channel gain depending on
the number of open microphones. The open microphone channel gain is attenuated by the gain set on the
following setting screen each time the number of open microphones doubles. The use of this function allows
an output level to be kept constant, thus helping to prevent feedback. Set each input channel to enable or
disable this function. (Refer to p. 39.)
This function operates in each of the auto-mixing groups, GROUP A through D (p. 37).
[Screen display operations]
Crossover configuration (low frequency) settings (previous page)
GROUP B
attenuation gain
GROUP C
attenuation gain
GROUP A
attenuation gain
GROUP D
attenuation gain
[
[
U T Y
]
N OM A T T E N
[
[
U T Y
]
N OM A T T E N
[
[
U T Y
]
N OM A T T E N
[
[
U T Y
]
N OM A T T E N
G R O U P
A
]
1
0
G R O U P
B
]
1
0
G R O U P
C
]
1
0
G R O U P
D
]
1
0
When using the D-981, D-983, or D-984VC:
Contact input/output settings (next page)
When not using the D-981, D-983, or D-984VC: Protect settings (p. 68)
CHANGE
• Rotate the Setting knob to set the attenuation gain for each
group.
Parameter setting range: 0 – 20 (0 log10NOM – 20 log10NOM)
PARAMETER
PUSH-ENTER
[ U T Y ] N OM A T T E N
[ G R O U P A ] 1 0
64
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12.5. Contact Input/Output Settings (Available only when D-981, D-983, or D-984VC is used)
Many different functions assigned to the input and output contacts of the D-981 or D-983 Remote Control
Module, or the D-984VC VCA Control Module can be remotely controlled by connected external equipment.
Use the Setting knob to select the functions to be assigned.
Notes
• To make subsequent settings valid when the power is ON after the initial Contact input/output settings, save
the configuration (p. 60). Settings are saved as system data, and setting status is maintained even if the
preset memory is recalled.
• Configuration can also be saved by pressing the Setting knob at this screen.
12.5.1. Function assignment to the input contact
Each of the following functions can be assigned to input contacts (1 – 8 when the D-981 or D-984VC is used,
and 1 – 24 when the D-983 is used).
Preset memory recall, Input and output channel volume adjustment,
Channel ON/OFF setting, and Line (stereo) input selection
[Screen display operations]
NOM attenuation settings (previous page)
Input contact
number selection
[
U T Y
]
R M
I
N
[
[
[
[
U T Y
]
R M
I
I
I
N
No function is assigned.
1
:
N O N E
1
:
N O N E
CHANGE
PARAMETER
Preset memory
recall
Preset number
PUSH-ENTER
CHANGE
PARAMETER
U T Y
]
R M
N
1
[
U T Y
]
R M
I
N
1
Select the preset memory number.
Select the channel number.
Select the channel number.
1
P R E S E T
1
:
P R E S E T
PUSH-ENTER
CHANGE
PARAMETER
Volume UP
Channel number
PUSH-ENTER
CHANGE
PARAMETER
U T Y
]
R M
N
[
U T Y
]
R M
I
N
I
1
V O L U P
I
N 1
1
:
V O L U P
N 1
PUSH-ENTER
CHANGE
PARAMETER
Volume DOWN
Channel number
PUSH-ENTER
CHANGE
PARAMETER
CHANGE
PARAMETER
U T Y
]
R M
I
N
[
U T Y
]
R M
I
N
1
V O L D O
W
N
I
N 1
1
:
V O L D O
W
N
I
N 1
PUSH-ENTER
CHANGE
PARAMETER
PUSH-ENTER
Channel ON/OFF
(Contact)
Channel number
PUSH-ENTER
CHANGE
PARAMETER
[
U T Y
]
R M
I
N
[
U T Y
]
R M
I
N
Channels are enabled when the
contact closes, and disabled when
the contact opens.
1
C H M A K E
I
N 1
1
:
C H M A K E
I
N 1
PUSH-ENTER
CHANGE
PARAMETER
Channel ON/OFF
(Pulse)
Channel number
PUSH-ENTER
CHANGE
PARAMETER
[
U T Y
]
R M
I
N
[
U T Y
]
R M
I
N
Enables and disables channels
each time a pulse signal is
received.
1
C H P L S
I
N 1
1
:
C H P L S
I
N 1
PUSH-ENTER
CHANGE
PARAMETER
Slot number/line (stereo)
input number
Line (stereo) input
selection
PUSH-ENTER
CHANGE
PARAMETER
[
U T Y
]
i
R M
I
l
N
[
U T Y
]
i
R M
I
l
N
Select the slot number and Line
(stereo) input number for the D-
936R or the D-937SP (only when
the D-936R or the D-937SP is
used).
(Example. S2-1: First line (stereo)
input for the stereo module
inserted into Slot 2)
1
L
n e S e
S 2
–
1
1
:
L
n e S e
S 2
–
1
PUSH-ENTER
[
[
U T Y
]
R M
I
I
N
N
Setting items are the same as above.
Setting items are the same as above.
2
:
N O N E
U T Y
]
R M
8
:
N O N E
Output contact number selection (p. 67)
65
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[Setting Procedures (Example. Assigning Preset Memory 3 recall to Contact Input 2)]
[ U T Y ] R M I N
1 : N O N E
CHANGE
PARAMETER
1
PUSH-ENTER
2
[ U T Y ] R M I N
2 : N O N E
[ U T Y ] R M I N
N O N E
2
CHANGE
PARAMETER
3
4
PUSH-ENTER
[ U T Y ] R M I N
P R E S E T
[ U T Y ] R M I N
2
1
2 : P R E S E T
1
CHANGE
PARAMETER
5
PUSH-ENTER
[ U T Y ] R M I N
2 : P R E S E T
3
CHANGE
PARAMETER
PUSH-EN
Step 1. Rotate the Setting knob to select the input contact number.
Step 2. Press the shift key.
Step 3. Rotate the Setting knob to select the function to be assigned to the contact input.
Step 4. Press the shift key.
Step 5. Rotate the Setting knob to select the setting contents for each function.
Tip
Pressing the Setting knob executes the Configuration save and allows the display to revert to the
Input contact number selection screen.
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12.5.2. Function assignment to the output contact
The following functions can be assigned to output contacts (1 – 8 when the D-981 or D984-VC is used, and 1
– 16 when the D-983 is used).
Preset memory recall tally, Channel ON/OFF tally, Contact input status tally,
and Line (stereo) input selection tally
The procedures for assigning functions are the same as those used when assigning functions to the input
contacts.
[Screen display operations]
Input contact number selection (p. 65)
Output contact
Normally break
number selection
Set to [Normally break]*.
[
U T Y
]
R M O U T
[
U T Y
]
R M O U T
1
:
B R E A K
1
B R E A K
CHANGE
PARAMETER
Normally make
PUSH-ENTER
Set to [Normally make]*.
[
U T Y
]
R M O U T
1
M A K E
CHANGE
PARAMETER
Preset memory
recall tally
Preset memory number
PUSH-ENTER
CHANGE
PARAMETER
Select the preset memory
number.
[
U T Y
]
R M O U T
[
U T Y
]
R M O U T
1
:
P R E S E T
1
1
P R E S E T
1
PUSH-ENTER
CHANGE
PARAMETER
Channel ON/OFF tally
Channel number
PUSH-ENTER
CHANGE
PARAMETER
CHANGE
PARAMETER
Select the channel number.
[
U T Y
]
R M O U T
[
U T Y
]
R M O U T
N 1
1
C H
I
N 1
1
:
C H
I
PUSH-ENTER
CHANGE
PARAMETER
PUSH-ENTER
Contact input number
Contact input
status tally
PUSH-ENTER
CHANGE
PARAMETER
Select the contact input number.
[
U T Y
]
R M O U T
[
U T Y
]
R M O U T
1
R M
I
N
1
1
:
R M
I
N
1
PUSH-ENTER
CHANGE
PARAMETER
Slot number/line (stereo)
input number
Line (stereo) input
PUSH-ENTER
CHANGE
PARAMETER
Select the slot number and line
(stereo) input number for the D-
936R or the D-937SP (only when
the D-936R or the D-937SP is
used).
(Example. S2-1: First line
(stereo) input for the stereo
module inserted into Slot 2)
[
U T Y
]
i
R M O U T
n e S e S 2
[
U T Y
]
i
R M O U T
n e S e S 2
selection tally
1
L
l
–
1
1
:
L
l
–
1
PUSH-ENTER
[
[
U T Y
]
R M
I
I
N
N
Setting items are the same as above.
Setting items are the same as above.
2
:
N O N E
U T Y
]
R M
8
:
N O N E
Protect settings (next page)
* Normally break: Turning on the power sets the contact output to "break."
Normally make: Turning on the power sets the contact output to "make."
Note: All contact outputs are at break while the power is off.
67
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12.6. Protect Settings
Operation misses can be avoided by protecting front panel-mounted key operations.
Tips
• To make subsequent protections valid when the power is ON after the initial Protect function settings, save
the configuration (p. 60). (However, if the Protection function is enabled in the way described below, the
configuration save needs not be performed because the latest configuration including the Protection function
settings are automatically saved at the moment of the key operation.) Settings are saved as system data,
and setting status is maintained even if the preset memory is recalled.
• Control operations can be performed either by way of the RS-232C port or the remote control module even
when in protection mode.
• Configuration can also be saved by pressing the Setting knob at this screen.
When using the D-981, D-983, or D-984VC:
Contact input/output settings (p. 65)
When not using the D-981, D-983, or D-984VC:
NOM attenuation settings (p. 64)
[ U T Y ] P R O T E C T
Individual Function Key
Protect setting screen
U N L O C K
(Refer to the next page.)
• Confirm protect status.
UNLOCK: Disables the Protect function. The Protect function can be set while
unlocked.
RS-232C port
settings (p. 70)
LOCK:
Enables the Protect function, and validates the Protect function settings.
System lock indicator
[Enabling and disabling the Protect function]
Press the Setting knob while holding down the
Utility key to enable the Protect function and
lock the system. (The System Lock indicator
lights.) To release the lock and disable the
Protect function, press the Setting knob again
while holding down the Utility key. (The System
lock indicator extinguishes.)
DIGITAL MIXER model D-901
CHANGE
PARAMETER
UTILITY
ESET
LOCK
ON
PUSH-EN
ENTRY SECTION
1
2
3
4
5
6
7
8
Note
Both the system lock and unlock operations
automatically save the configuration.
PRESET
[Keys that can be protected]
ALL
CURSOR
SELECT
UTILITY
CHG PARAM *
DIGITAL MIXER model D-901
PEAK
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
+12dB
+6dB
0dB
8
9
CHANGE
-6dB
10
11
12
UTILITY
PRESET
PARAMETER
-12dB
-20dB
-40dB
POWER
LOCK
ON
SEL
SEL SIG
0N
0N
SIG SEL
ON
PUSH-ENTER
OFF
ENTRY SECTION
FBS
0N
SIG SEL
1
2
3
4
5
6
7
8
ON
EFFECT
ON
INPUT
MIC BUS
OUTPUT
PRESET
PRESET LOAD
INPUT
EFFECT OUTPUT
*
Bus assignment operations by way of the Input and Output channel selector keys are also locked
and disabled.
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• Rotate the Setting knob to select the key(s) to be protected.
• The Protect function can be enabled or disabled for the selected key(s) by pressing the function ON/OFF
key.
• Enables or disables the Protect function for all keys.
[ U T Y ] P R O T E C T
A L L : O N
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON: Simultaneously enables the Protect function for all keys.
: Enables the Protect function for a part of keys.
---
CHANGE
PARAMETER
OFF: Simultaneously disables the Protect function for all keys.
PUSH-ENTER
• Enables or disables the Protect function for the Utility key.
• When enabled (ON), the Utility function cannot be set.
[ U T Y ] P R O T E C T
U T I L I T Y : O N
CHANGE
PARAMETER
PUSH-ENTER
• Enables or disables the Protect function for the Preset key.
• When enabled (ON), the Preset Memory function cannot be set using
the Preset key. (Preset memory can be recalled using the Preset
memory selector keys.)
[ U T Y ] P R O T E C T
P R E S E T : O N
CHANGE
PARAMETER
PUSH-ENTER
• Enables or disables the Protect function for the Setting knob, the
Function ON/OFF key, and bus assignment operation by way of the
Input and Output channel selector keys.
[ U T Y ] P R O T E C T
C H G P A R A M : O N
CHANGE
PARAMETER
• When enabled (ON), parameters cannot be set.
PUSH-ENTER
• Enables or disables the Protect function for the Screen shift keys.
• When enabled (ON), screen displays cannot be changed with the shift
keys.
[ U T Y ] P R O T E C T
C U R S O R
: O N
CHANGE
PARAMETER
PUSH-ENTER
• Enables or disables the Protect function for the Preset memory
selector keys (1 – 8).
• When enabled (ON), preset memory cannot be recalled using the
Preset memory selector keys. (Preset function can be set using the
Preset keys.)
[ U T Y ] P R O T E C T
L O A D : O N
CHANGE
PARAMETER
PUSH-ENTER
• Enables or disables the Protect function for the Input volume control
and the Input channel ON/OFF key.
• When enabled (ON), the input volume cannot be adjusted with the
Input volume control, and the input channels cannot be enabled or
disabled.
[ U T Y ] P R O T E C T
I N P U T : O N
CHANGE
PARAMETER
PUSH-ENTER
• Enables or disables the Protect function for the Output volume control
and the Output channel ON/OFF key.
• When enabled (ON), the output volume cannot be adjusted with the
Output volume control, and the output channels cannot be enabled or
disabled.
[ U T Y ] P R O T E C T
O U T P U T : O N
CHANGE
PARAMETER
PUSH-ENTER
• Enables or disables the Protect function for the Input channel selector
keys, the Output channel selector keys, and the Microphone bus
selector key.
[ U T Y ] P R O T E C T
S E L E C T : O N
CHANGE
PARAMETER
• When enabled (ON), the selector keys cannot be used.
PUSH-ENTER
• Enables or disables the Protect function for the Effect key.
• When enabled (ON), the Effect key cannot be used.
[ U T Y ] P R O T E C T
E F F E C T K E Y : O N
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12.7. RS-232C Port Settings
[Screen display operations]
Protect settings (p. 68)
Tip
Settings are automatically saved as system data, and
setting status is maintained even if the power is turned
off.
Control mode
selection
RS-232C transmission
rate
[
U T Y
]
R S
1
-
2
5
3
2
2 C
0 0 b p s
[
U T Y
]
R S
-
2
3
2 C
1
MO D E
N O N E
All input/output channel gain confirmation (next page)
12.7.1. Control mode selection
• Rotate the Setting knob to select the mode that matches the type
of equipment connected to the unit's RS-232C port.
UPDATE: A PC is connected to update the unit's firmware
using the utility program. (Refer to p. 74.)
CHANGE
PARAMETER
[ U T Y ] R S - 2 3 2 C
MO D E P C C T R L
PUSH-ENTER
REMOTE: A conventional remote controller (AMX, Crestron,
etc.) is connected.
PC CTRL: A PC is connected to control the unit using the
dedicated setting software program (to be
downloaded from our International site, see
below).
Tips
• While the D-901 is communicating with a PC, the front-mounted
system lock indicator flashes.
• In the above status, attempting to change settings with the
front-mounted knobs or keys notifies the operator of prohibited
operation by way of the indication shown below.
P C C o n t r o l M o d e
K e y L o c k e d
• To enforce the termination of communications with the PC,
press the Setting knob holding down the Function ON/OFF key.
• The control protocol and setting software program are available
for download at our website:
12.7.2. RS-232C transmission rate settings
• Rotate the Setting knob to set the RS-232C transmission rate.
Parameter setting range: 115200, 38400, 19200, 9600 bps
CHANGE
PARAMETER
[ U T Y ] R S - 2 3 2 C
1 1 5 2 0 0 b p s
PUSH-ENTER
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12.8. All Input/Output Channel Gain Confirmation
RS-232C port settings (previous page)
[ U T Y ] A L L F A D E R
P O S I T I O N
I N
O U T
• Gains of all input channels
can be simultaneously
confirmed. Channels are
Input Nos. 1 through 12
from left to right.
• Gains of all output channels
can be simultaneously
confirmed. Channels are
Output Nos. 1 through 8
from left to right.
12.9. All Input/Output VCA Status Confirmation (Only when the D-984VC is used)
All input/output channel gain confirmation (previous section)
[ U T Y ] A L L V C A
P O S I T I O N
V C
I N
V C A
O U T
• VCA status of all output channels
can be simultaneously confirmed.
Channels are Input Nos.1 through
8 from left to right. Maximum
value: 0 V, Minimum value: 5 V
• VCA status of all Input channels
can be simultaneously confirmed.
Channels are Input Nos.1
through 12 from left to right.
Maximum value: 0 V, Minimum
value: 5 V
Module type confirmation
(next page)
Note
The above screens show the statuses of VCA input and output terminals.
When channels are set for the stereo link or group, all their gains change
synchronizing with the lowest numbered channel's gain. Irrespective of
these settings for channels, the VCA statuses are displayed for individual
channels as shown above.
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12.10. Module Type Confirmation
Types of modules installed in the unit's rear slots can be confirmed.
[Screen display operations]
All input/output channel gain confirmation (previous section)
Individual slots
confirmation
All slots confirmation
[
U T Y
]
S L O T
1 F
S L O T
T Y P E
:
:
1
2
3
4
5
6
7
8
9
1
:
D
-
9
2
/
E
(
A
)
A A B B C – D E F
CHANGE
PARAMETER
PUSH-ENTER
[
U T Y
]
S L O T
1 F
2
:
D
-
9
2
8
/
E
(
A
)
[
U T Y
]
S L O T
9
:
D
-
9
1
(
F
)
Cooling fan operation status confirmation (next page)
12.10.1. Individual slots confirmation
CHANGE
PARAMETER
• Rotate the Setting knob to confirm the type of module installed in
[ U T Y ] S L O T
each slot.
• The slot number and installed module type are displayed on the
lower row.
1 : D - 9 2 1 F / E ( A )
PUSH-ENTER
The module types are as follows:
· D-923AE: D-923AE (I)
· D-937SP: D-937SP (J)
· D-961SP: D-961SP (K)
· D-972AE: D-972AE (L)
· D-921F or D-921E: D-921F/E (A)
· D-922F or D-922E: D-922F/E (B)
· D-936R:
D-936R (C)
· D-971M or D-971E: D-971M/E (D)
· D-983:
· D-984VC: D-984VC (N)
D-983 (M)
· D-971R:
· D-981:
D-971R (E)
D-981 (F)
· No module installed:
BLANK (–)
• For the slot where a wrong module is inserted (for example, an
output module is inserted into an input slot), "( )" is displayed.
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12.10.2. All slots confirmation
• Slot numbers are displayed on the upper row, and the inserted module
types on the lower row.
S L O T : 1 2 3 4 5 6 7 8 9
T Y P E : A A B B C – D E F
A: D-921E or D-921F Microphone/line input module
B: D-922E or D-922F Microphone/line input module
C: D-936R Stereo input module
D: D-971E or D-971M Line output module
E: D-971R Line output module (RCA connector)
F: D-981 Remote control module
I: D-923AE Digital input module
J: D-937SP Digital input module
K: D-961SP Digital output module
L: D-972AE Digital output module
M:D-983 Remote control module
N: D-984VC VCA control module
–: Blank
: A wrong module installed
• When a wrong module is inserted into a slot, the initial screen that
indicates the relevant slot with " " mark appears after the unit's power
is switched ON as shown below.
E R R O R
C H E C K S L O T
12.11. Cooling Fan Operating Status Confirmation
Module type confirmation (previous page)
• The operating status of the rear-mounted cooling fan can be confirmed
on the screen.
Normal operation:
[ U T Y ] F A N
R U N N I N G
[ U T Y ] F A N
R U N N I N G
Operation failure:
[ U T Y ] F A N
A R N I N G
W
• When "ERROR" is displayed, check to be sure that the fan exhaust
vent is not blocked or that a foreign object has not jammed the vent.
The fan is detected as having failed when it stops or if its rotation
speed is extremely slow. In such cases contact your TOA dealer.
• If the fan rotation speed decreases dramatically, the display switches
over to the cooling fan failure screen even when another screen is
displayed. Pressing the Setting knob turns off the failure indication.
12.12. Firmware Version Confirmation
• The firmware version number can be confirmed.
[ U T Y ] V E R S I O N
3 . 0 0 . 0 0 0
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13. RESTORING FACTORY DEFAULT SETTINGS
Perform the following procedure to reset all parameters to the factory default settings.
Step 1. Turn the power switch OFF.
DIGITAL MIXER model D-901
Step 2. Turn the power switch ON while holding down both the
and shift keys. Keep pressing both keys until
CHANGE
PARAMETER
UTILITY
PRESET
"[SYSTEM] Initialize OK?" is displayed on the LCD
screen.
POWER
LOCK
ON
ON
PUSH-ENTER
OFF
SECTION
2
3
4
5
6
7
8
PRESET
Step 3. Press the Setting knob.
CHANGE
PARAMETER
The LCD screen display changes to "[SYSTEM]
Initializing..."
Then, all parameters are reset to the factory default
settings, and the Input/Output Gain Setting screen is
displayed.
[ S Y S T E M ]
I n i t i a l i z e
O K ?
PUSH-EN
Note
[ S Y S T E M ]
I n i t i a l i z i n g . . .
The factory default Bus Assignment setting is made so
that each input (1 – 12) is assigned to all outputs (1 – 8)
via the Microphone Bus. Other default parameters are
shown on p. 85 – 88.
I N 1 ]
[ O U T 1 ]
0 . 0 d B
– I N F d B
14. FIRMWARE UPDATE
The D-901's firmware can be updated using the software program (D901PCvxxxe_fxxx.exe)*1 made available
program to install it into your PC. (For the installation procedure, refer to the "D901 PC Software Instruction
Manual" also available on the same site.)
The firmware update is performed by using the D-901 Firmware Update Utility program simultaneously
installed with the D-901 PC Software.
Follow the procedure for the firmware update below.
After updating the firmware, use the latest D-901 instruction manual that can also be downloaded from the
website above.
*1 The software version number can be confirmed at the xxx indication. For example when the PC Software
version is 3.00 and Firmware version is 3.01, it is indicated as "D901PCv300e_f301.exe.
Step 1. Connect both RS-232C ports of the D-901 and the PC using a 9-pin straight cable (male-to-female
cord).
Step 2. Make RS-232C port settings at the D-901.
Set the control mode to "UPDATE*2" and the transmission rate to "115200 bps" (recommended).
(Refer to p. 70.)
*2 Set "NONE" for the version 1.xx firmware.
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Step 3. Select the menu items [Start → Program → TOA Digital Audio Control → Update D-901 Firmware].
The D-901 Firmware Update screen appears.
4
6
8
The default communication settings are as follows:
Communication port: COM 1
Baud rate: 115200 bps
Unless otherwise necessary to change, follow Step 6.
To change the settings, follow Step 4.
Step 4. Click the Comm Settings button.
The Comm Settings screen appears.
Step 5. Set the PC's Com port the D-901 is connected to, and the Speed (baud rate*) equal to the D-901's
RS-232C transmission rate.
Click OK, then the Comm Settings screen closes.
* Set the same value as that set in Step 2.
Step 6. Click the Update button of the D-901 Firmware Update screen.
The firmware update starts being transferred from the PC to the D-901.
The following screen appears after the update ends.
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[If "No Reply" is displayed]
If the screen on the right appears after clicking the
Update button, confirm the following:
• RS-232C cable specification and connection
Check that 9-pin straight cable (male - female) is
used.
• RS-232C settings at the D-901 (p. 70)
Check that the control mode is set to UPDATE*.
* Set "NONE" for the version 1.xx firmware.
• PC communication settings (above on this page)
After confirming all the above items, follow the procedure from Sep 3 again.
If the same "No Replay" indication still appears in this Step 6, turn the D-901's power off, and on
again. Then, follow the steps again from the beginning.
Step 7. Turn the D-901's power off, and on again.
Confirm the firmware version number that appears on the LCD screen at the unit's power-on. When
the new version number is indicated, update has been completed correctly.
Using the Utility key can also indicate the firmware version number on the LCD screen. (Refer to p.
73.)
[If an error indication appears on the D-901's LCD screen] (See the screens below.)
Click the Update button of the D-901 firmware update screen, and "Complete!" is displayed on its
screen. Then, the error indication disappears.
After confirming its disappearance, restart the procedure from Step 2 without turning the D-901's
power off.
< < S Y S T E M E R R O R > >
T Y P E f f 0 0
< < S Y S T E M E R R O R > >
T Y P E f f 0 1
or
:
:
Step 8. Click the Exit button to end the firmware update.
15. RACK MOUNTING
Mount the unit in an equipment rack using the Cautions
supplied rack-mounting screws and fiber washers.
• Install the unit as far as possible away from
amplifiers or other equipment that generate heat.
• The socket-outlet shall be installed near the
equipment and the plug (disconnecting device)
shall be easily accessible.
• When installing the unit in an equipment rack, pay
attention not to block the ventilation slots on the
unit's bottom. It is recommended that a Perforated
panel of over 1-unit in size be mounted directly
below the unit as shown below.
D-901
D-901 Digital Mixer
Fiber washer for M5
(supplied)
Rack-mounting screw
5 x 12 (supplied)
Note
The supplied rack mounting screws are special
screws for the TOA equipment rack.
They cannot be used for other racks.
Perforated panel
(panel with ventilation slots)
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16. CONNECTIONS
16.1. Connection Example 1
BGM player (Cassette deck, CD
player, MD player, etc.)
AMX, Crestron, or other
control equipment
Microphone
D-901
1R
2R
3R
4R
1L
2L
3L
4L
C
1
2
3
1
2
3
4
1
2
3
4
1
1
1
4
INPUT
5
6
GND LIFT
NORMAL
GND LIFT
NORMAL
GND LIFT
NORMAL
7
RS-232C
8
C
PS
ACOUS
E
AC100V 50/60Hz 45W
C
1
2
3
2
2
2
4
OUTPUT
5
GND LIFT
NORMAL
GND LIFT
NORMAL
GND LIFT
NORMAL
6
7
DIGITAL MIXER
model D-901
SIGNAL
GND
8
C
TOA Corporation
MADE IN JAPAN
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
Remote controller
Speaker
Power amplifier
Speaker
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16.2. Connection Example 2 (Broadcasting to two separate zones)
BGM player (Cassette deck, CD
player, MD player, etc.)
D-901
1R
2R
3R
4R
1L
2L
3L
4L
C
1
2
3
4
5
6
7
8
C
E
C
H
E
C
H
E
C
H
E
C
H
E
C
H
1
2
3
4
1
2
3
4
1
1
1
INPUT
GND LIFT
NORMAL
GND LIFT
NORMAL
GND LIFT
NORMAL
E
C
H
E
C
H
RS-232C
PS
E
ACOUS
AC100V 50/60Hz 45W
C
1
2
3
4
5
6
7
8
C
E
C
H
E
C
H
E
C
H
E
C
H
E
C
H
2
2
2
OUTPUT
GND LIFT
NORMAL
GND LIFT
NORMAL
GND LIFT
NORMAL
E
C
H
E
C
H
DIGITAL MIXER
model D-901
SIGNAL
GND
TOA Corporation
MADE IN JAPAN
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
ACCESSORY I.T.E 78CK
Power amplifier
Microphone
Microphone
Remote controller
Remote controller
Main speaker (R)
Speaker
Speaker
Main speaker (L)
Zone A
Zone B
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16.3. Removable Terminal Plug Connection
Cautions
• Be sure to use shielded cables for audio signal lines.
• Avoid soldering stranded or shielded cable, as contact resistance may increase when the cable is tightened
and the solder is crushed, possibly resulting in an excessive rise in joint temperatures.
Cable end treatment
Solid or stranded cable
7 mm
Shielded cable
7 mm
20 mm
Connector connections
Slotted screwdriver
Step 1. Detach the unit's rear-mounted input/output
connector (removable terminal plug) from the unit.
Tightens
Loosens
3
2
Step 2. Loosen the terminal screw, then insert the cable.
Step 3. Retighten the terminal screw. (Pull on the cable to
Terminal screw
Shielded cable
ensure it is securely connected.)
2
Step 4. Remount the input/output connector to the unit.
Removable
terminal plug
Tip
Recommended slotted screwdriver type: Screwdriver with
blade that is 3 mm in width
Bit shape 3 mm
16.4. Ferrite Cable Clamp Attachment (For D-972AE only)
To reduce electromagnetic noise, place the supplied ferrite
clamp over each digital output cable when making a cable
connection to the D-972AE Digital Output Module.
DIGITAL OUT
1/2
Install one ferrite clamp per digital output cable.
AES/EBU
Loop the cable one turn.
3/4
AES/EBU
D-972AE
Ferrite clamp
(Supplied with the D-972AE)
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16.5. Connections of the D-984VC
The optional VCA Fader Unit D-911 can remotely control the VCA Control Module D-984VC.
However, You can make a special unit having the same functions as the D-911 referring to the technical
information described here.
16.5.1. Connecting to the D-984VC
• For connecting to each terminal, use a CAT5 (Category 5) UTP cable fitted with a RJ45 connector.
Note
Use a STP cable in an environment where the cable is susceptible to noises.
• Maximum cable length is 100 m.
• Pin arrangement of the D-984VC's terminals
D-984VC
[Input channel VCA terminals]
[Output channel VCA terminals]
OUT CH
IN CH
VCA
Pin No.
Pin No.
Control input
terminals
1-4
5-8
OUT CH 5
1-6
7-12
IN CH 7
IN CH 8
IN CH 9
IN CH 12
IN CH 11
IN CH 10
V
CTRL IN
1-4
5-8
IN CH
1-6
7-12
1
2
3
4
5
6
7
8
OUT CH 1
OUT CH 2
OUT CH 3
1
2
3
4
5
6
7
8
IN CH 1
IN CH 2
IN CH 3
IN CH 6
IN CH 5
IN CH 4
V
OUT CH 6
OUT CH 7
C
V
C
V
Input channel
VCA terminals
OUT CH 4
OUT CH 8
Output channel
VCA terminals
V
C
V
C
C
C
1-4
5-8
1-4
5-8
CTRL OUT OUT CH
1
2
3
4
Control output
terminals
[Control input terminals]
[Control output terminals]
CTRL IN
CTRL OUT
Pin No.
Pin No.
1-4
5-8
CTRL IN 5
1-4
CTRL OUT 1
C 1
5-8
CTRL OUT 5
C 5
1
2
3
4
5
6
7
8
CTRL IN 1
1
2
3
4
5
6
7
8
C
C
CTRL IN 2
CTRL IN 6
CTRL OUT 2
C 3
CTRL OUT 6
C 7
C
C
CTRL IN 3
CTRL IN 7
CTRL OUT 3
C 2
CTRL OUT 7
C 6
C
CTRL IN 4
V
C
CTRL IN 8
V
CTRL OUT 4
C 4
CTRL OUT 8
C 8
5
6
7
8
16.5.2. Input and output channel VCA controls (1) – (4)
• With 5 V at an input channel VCA pin (IN CH 1 – 12) or at an output channel VCA pin (OUT CH1 – 8), the
corresponding channel's sound volume is minimum. With 0 V, the sound volume is at the level set by the D-
901.
• Use 10 kΩ potentiometers of taper B.
• Up to 6 volume controls can be connected to each V pin.
[Connections to the input channel VCA terminal]
1
2
3
4
5
6
7
8
IN CH 1
IN CH 2
IN CH 3
IN CH 6
IN CH 5
IN CH 4
V (+5 V)
C (GND)
D-984VC
[IN CH 1 - 6]
0 V
D-901's volume
Minimum level
RJ45
+5 V
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[Connections to the output channel VCA terminal]
1
2
3
4
5
6
7
8
OUT CH 1
OUT CH 2
OUT CH 3
C (GND)
V (+5 V)
OUT CH 4
V (+5 V)
C (GND)
D-984VC
[OUT CH 1 - 4]
0 V
D-901's volume
RJ45
+5 V
Minimum level
16.5.3. Contact controls (5) – (8)
• Preset memory recall function is assigned to the contact input and output pins at the factory. To change this
function assignment to give channel ON/OFF or line input selection, refer to p. 69.
• The V pins of the control input terminals can be used for LED connections. To do this, connect the contact
COM pins to use out of the C1 – 4 pins of the control output (7) or the C5 – 8 pins of the control output (8) to
the C pins of the control input (5) or (6). (The diagram below is an example where the control output's C1 –
4 pins are connected to the control input's C pins.)
1
2
3
4
5
6
7
8
CTRL IN 1
C (GND)
CTRL IN 2
C (GND)
CTRL IN 3
C (GND)
CTRL IN 4
V (+5 V)
D-984VC's control
input terminal (5)
[CTRL IN 1 - 4]
RJ45
1
2
3
4
5
6
7
8
CTRL OUT 1
C1
CTRL OUT 2
C2
CTRL OUT 3
C3
CTRL OUT 4
C4
D-984VC's control
output terminal (7)
[CTRL OUT 1 - 4]
RJ45
• The current capacity is 40 mA per V pin. When more current is needed, connect a power supply separately
as shown below.
1
2
3
4
5
6
7
8
CTRL IN 1
C (GND)
CTRL IN 2
C (GND)
CTRL IN 3
C (GND)
CTRL IN 4
V (+5 V)
D-984VC's control
input terminal (5)
[CTRL IN 1 - 4]
RJ45
1
2
3
4
5
6
7
8
CTRL OUT 1
C1
CTRL OUT 2
C2
CTRL OUT 3
C3
CTRL OUT 4
C4
D-984VC's control
output terminal (7)
[CTRL OUT 1 - 4]
DC
RJ45
• Never connect the V pins of control inputs (5) and (6) to the V pins of VCA pins (1) – (4) as the sound
volume may be affected due to voltage drop caused by these connections.
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17. BLOCK DIAGRAM
Only when using the D-984VC
Microphone/Line
Input Module
(D-921F or D-921E)
SIG LED
SIG LED
SIG LED
Trim
Trim
Trim
Fader
Fader
Fader
VCA GR Trim
VCA GR Trim
VCA GR Trim
ON
ON
ON
+15 V PAD
AD
COMP/
Leveler
1
2
HPF PEQ(2)
HPF PEQ(2)
HPF PEQ(2)
Auto MIX
Auto MIX
Auto MIX
Auto MIX
COMP/
Leveler
+15 V PAD
AD
COMP/
Leveler
3
SIG LED
SIG LED
SIG LED
SIG LED
SIG LED
SIG LED
SIG LED
Trim
Trim
Trim
Trim
Trim
Trim
Trim
Fader
Fader
Fader
Fader
Fader
Fader
Fader
VCA GR Trim
VCA GR Trim
VCA GR Trim
VCA GR Trim
VCA GR Trim
VCA GR Trim
VCA GR Trim
Microphone/Line
Input Module
(D-922F or D-922E)
ON
ON
ON
ON
ON
ON
ON
COMP/
Leveler
4
HPF PEQ(2)
HPF PEQ(2)
HPF PEQ(2)
HPF PEQ(2)
HPF PEQ(2)
HPF PEQ(2)
HPF PEQ(2)
COMP/
Leveler
5
Auto MIX
Auto MIX
Auto MIX
Auto MIX
+15 V PAD
AD
DIP SW
+15 V PAD
COMP/
Leveller
6
AD
COMP/
Leveler
7
DIP SW
COMP/
Leveler
Stereo Input Module
(D-936R)
8
L
R
COMP/
Leveler
9
Auto MIX
Auto MIX
Auto MIX
Auto MIX
L
R
AD
AD
COMP/
Leveler
10
11
12
L
R
SIG LED
SIG LED
Trim
Trim
Fader
Fader
VCA GR Trim
VCA GR Trim
ON
ON
L
R
COMP/
Leveler
HPF PEQ(2)
HPF PEQ(2)
COMP/
Leveler
Digital Input Module
(D-923AE)
DIR
DIR
DE-EMP SRC
DE-EMP SRC
Front panel
Automatic
Digital Input Module
(D-937SP)
OPTICAL
DIR
DIR
DE-EMP SRC
OPTICAL
COAXIAL
DE-EMP SRC
COAXIAL
Automatic
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Only when using the D-984VC
Line Output Module (D-971M or D-971E)
DA
DA
DA
DA
1
2
3
4
5
6
7
8
M
SIG LED
GR Trim
GR Trim
GR Trim
GR Trim
GR Trim
GR Trim
GR Trim
Fader VCA
Fader VCA
Fader VCA
Fader VCA
Fader VCA
Fader VCA
Fader VCA
Fader VCA
ON
ON
ON
ON
ON
ON
ON
ON
1
2
3
4
5
6
7
8
Filter(6) COMP Delay
Filter(6) COMP Delay
Filter(6) COMP Delay
Filter(6) COMP Delay
Filter(6) COMP Delay
Filter(6) COMP Delay
Filter(6) COMP Delay
Filter(6) COMP Delay
SIG LED
SIG LED
SIG LED
SIG LED
SIG LED
SIG LED
SIG LED
Line Output Module (D-971R)
DA
DA
DA
DA
Digital Output Module (D-972AE)
DIT
DIT
DIT
DIT
GR Trim
Digital Output Module (D-961SP)
DIT
FBS
OPTICAL
Effect
DIT
COAXIAL
DIT
OPTICAL
DIT
COAXIAL
DSP
Remote Control Module (D-981)
IN 1
CPU
IN 8
RS-232C
OUT 1
OUT 8
Remote Control Module (D-983)
IN 1
IN 24
OUT 1
OUT 16
VCA Control Module (D-984VC)
IN CH 1
IN CH 12
OUT CH 1
OUT CH 8
CTRL IN 1
CTRL IN 8
CTRL OUT 1
CTRL OUT 8
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18. LEVEL DIAGRAMS
18.1. Analog Input/Output
Microphone/Line
Input Module
D-921F, D-921E,
D-922F, or D-922E
Line Output Module
D-971M, D-971E,
or D-971R
DSP
Digital
dBu
dBu
+20
Clipping Level (+20 dB)
Max. Input (+24)
+20
Peak LED Turns ON
(+17 dB)
+10
0
LINE
(+4)
+10
0
(+4) D-971M/E
(0 dB)
LINE
(
-10)
(-10) D-971R
-10
-20
-30
-40
-50
-
10
20
-
SIG LED Turns ON
MIC
36)
(-40 dB)
(
-
MIC
50)
(
-
18.2. Digital Input/Output
Digital Input Module
D-923AE or D-937SP
Digital Output Module
D-972AE or D-961SP
DSP
dBFS
dBFS
0
Clipping Level (+20 dB)
Max. Input (0 dBFS)
0
Peak LED Turns ON
(+17 dB)
(0 dB)
-20
-40
-60
-
-
-
20
40
60
SIG LED Turns ON
-40 dB)
(
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19. PARAMETER SETTING ITEMS AND SETTING RANGES
Note: Underlined parameters are factory-preset.
[Input and Output/Trim Settings]
Setting Item
Input Channel Gain
Setting Range
–∞ to +10 dB
Input Trim Gain
–15 to +15 dB (0 dB), 0.1 dB steps
Input Trim Polarity
NORMAL, INVERSE
Input Channel Group Trim Gain
Output Channel Gain
–∞ to +10 dB, 0.1 dB steps
–∞ to +10 dB (0 dB)
Output Channel Group Trim Gain
–∞ to +10 dB, 0.1 dB steps
[D-921F or D921E settings (enabled when the module is mounted)]
Setting Item Setting Range
Phantom Power
PAD (Input Sensitivity)
ON, OFF
–50, –36, –10, +4 dB
[D-936R settings (enabled when the module is mounted)]
Setting Item
Setting Range
Line Input Mode
MIX ALL, SELECT
[High-Pass Filter Settings]
Setting Item
Setting Range
Cutoff Frequency
Slope
Q
20 Hz to 20 kHz (60 Hz), 1/24 octave steps
12 dB/oct
0.500 – 2.563 (0.707) (51 points)
ON, OFF
ON/OFF
[Equalizer Settings]
Setting Item
Setting Range
–15 to +15 dB (0 dB), 0.1 dB steps
20 Hz to 20 kHz (Low: 630 Hz, High: 1.25 kHz), 1/24 octave steps
0.267 – 69.249 (4.318) (96 points)
ON, OFF
Gain
Center Frequency
Q
ON/OFF
[Compressor/Auto-Leveler Mode Settings]
Setting Item
Setting Range
Compressor/Auto-Leveler Mode
COMP, LEVELER
[Compressor Settings]
Setting Item
Threshold Level
Ratio
Setting Range
–20 to +20 dB (0 dB), 1 dB steps
1:1, 2:1, 3:1, 4:1, 8:1, 12:1, 20:1, ∞:1
Attack Time
0.2, 0.5, 0.7, 1.0, 1.5, 2, 3, 5, 7, 10, 20, 50, 70, 100, 120, 150, 200,
250, 300, 500, 700 ms
1, 2, 3, 5 s
Release Time
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms
1, 2, 3, 5 s
Gain
ON/OFF
–∞ to +10 dB (0 dB), 1 dB steps
ON, OFF
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[Auto-Leveler Settings]
Setting Item
Target Level
Setting Range
–20 to +10 dB (0 dB), 1 dB steps
Maximum Gain
Attack Time
0 to +20 dB (+6 dB), 1 dB steps
10, 20, 50, 70, 100, 120, 150, 200,250, 300, 500, 700 ms,
1, 1.2, 1.5, 2, 2.5, 3, 5, 7, 10 s
Release Time
100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 1.2, 1.5, 2, 2.5, 3, 5, 7, 10 s
[Level Sense Settings]
Setting Item
Attack Time
Setting Range
0.2, 0.5, 0.7, 1.0, 1.5, 2, 3, 5, 7, 10, 20, 50, 70, 100, 120, 150, 200,
250, 300, 500, 700 ms
1, 2, 3, 5 s
Release Time
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 2, 3, 5 s
[Gate Settings]
Setting Item
Threshold Level
Hysteresis
Setting Range
–50 to +20 dB (–40 dB), 1 dB steps
0 to +10 dB, 1 dB steps
Depth
Hold Time
–∞ to 0 dB (–20 dB), 1 dB steps
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 2, 3, 5, 10 s
Attack Time
Release Time
ON/OFF
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 2, 3, 5, 10 s
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 2, 3, 5, 10 s
ON, OFF
[Auto-Mixing Group Settings]
Setting Item
Setting Range
Auto-Mixing Group
GROUP A, GROUP B, GROUP C, GROUP D
[Ducker Settings]
Setting Item
Priority Level
Depth
Setting Range
8 (in order of the priority level from high to low)
∞ to 0 dB (–20 dB), 1 dB steps
–
1
–
Attack Time
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 2, 3, 5, 10 s
Release Time
ON/OFF
10, 20, 50, 70, 100, 120, 150, 200, 250, 300, 500, 700 ms,
1, 2, 3, 5, 10 s
ON, OFF
[NOM Attenuation Settings]
Setting Item
Attenuation Gain
ON/OFF
Setting Range
0 log10 NOM – 20 log10 NOM (10)
ON, OFF
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[Bus Assignment and Crosspoint Gain Settings]
Setting Item
Setting Range
ON, OFF
Output 1 – 8:
Input 1
Microphone Bus: ON, OFF
Same as above
Input 2 – 12
Microphone Bus
Gain
Output 1 – 8:
ON, OFF
–∞ to 0 dB, 1 dB steps
[Crossover Settings]
Setting Item
Cutoff Frequency
Slope
Setting Range
–
20 Hz 20 kHz (1 kHz), 1/24 octave steps
Through, 6 dB/oct, 12 dB/oct BS,
12 dB/oct VQ
24 dB/oct VQ
BS: Bessel
12 dB/oct BW, 12 dB/oct LR, 18 dB/oct BS, 18 dB/oct VQ
18 dB/oct BW, 24 dB/oct BS, 24 dB/oct BW,
24 dB/oct LR
BW: Butterworth
LR: Likwitz-Riley
VQ: Variable Q
Q
–
–
0.500 2.563
0.500 2.563
(51 points)
(51 points)
–
Q2
0.500 2.563
(51 points)
–
GAIN
15 to +15 dB (0 dB), 0.1 dB steps
Polarity
NORMAL, INVERSE
[Filter Settings]
Filter Type
Parametric Equalizer
(PEQ)
Setting Item
Setting Range
Gain
–15 to +15 dB (0 dB), 0.1 dB steps
20 Hz – 20 kHz (1 kHz), 1/24 octave steps
0.267 – 69.249 (96 points)
Center frequency
Q
High-pass Filter (HPF)
Low-pass Filter (LPF)
Cutoff frequency
Slope
Q
Cutoff frequency
Slope
20 Hz – 20 kHz (1 kHz), 1/24 octave steps
6 dB/oct 12 dB/oct
0.500 – 2.563 (51 points)
20 Hz – 20 kHz (1 kHz), 1/24 octave steps
6 dB/oct 12 dB/oct
Q
Gain
Roll-off frequency
Gain
Roll-off frequency
Gain
0.500 – 2.563 (51 points)
–15 to +15 dB (0 dB), 0.1 dB steps
6 – 20 kHz, 1/24 octave steps
–15 to +15 dB (0 dB), 0.1 dB step
20 – 500 Hz, 1/24 octave steps
0 to +18 dB, 0.5 dB step
High Shelving Filter
Low Shelving Filter
Horn Equalizer (Horn EQ)
Notch Filter
Center frequency
Q
20 Hz – 20 kHz (1 kHz), 1/24 octave steps
8.651, 9.889, 11.538, 13.847, 17.310,
23.081, 34.623, 69.249
All-pass Filter
Center frequency
Q
20 Hz – 20 kHz (1 kHz), 1/24 octave steps
0.267 – 69.249 (96 points)
ON/OFF
ON, OFF
[Delay Time Settings]
Setting Item
Delay Time
ON/OFF
Setting Range
0 – 682.6 ms, 0.021 ms steps
ON, OFF
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[Feedback Suppression Settings]
Parameter
Setting Item
Setting Range
DYNAMIC
AUTO START
Dynamic mode ON/OFF
Auto mode activation
ON, OFF
AUTO : DYNAMIC Number of the filters used in each mode
CLEAR DYNAMIC Reset the filters set for Dynamic mode
AUTO : 0 – 9 (7), DYNAMIC : 3 – 12 (5)
CLEAR AUTO
Reset the filters set for Auto mode
[Feedback Suppression Filter Setting]
Setting Item
Setting Range
Gain
–15 to +15 dB, 0.1 dB steps
Center Frequency
Q
20 Hz – 20 kHz, 1/24 octave steps
0.267 – 69.249 (96 points)
Note
Performing the feedback suppression function automatically sets the above parameters. They can be
confirmed on the setting screen, but not manually changed.
[Effect (echo) Settings]
Setting Item
Setting Range
–∞ to 10.0 dB (–10 dB), 1 dB steps
Echo Gain
Feedback Ratio
Feedback Delay
Initial Echo (Pre-) Delay
Low-pass Filter Frequency
Q
0 – 99% (30%), 1% steps
0 – 682 ms (120 ms), 1 ms steps
0 – 682 ms (80 ms), 1 ms steps
20 Hz – 20 kHz (3.75 kHz)
0.500 – 2.563 (51 points)
ON, OFF
ON/OFF
[Preset Memory Crossfade Time Settings]
Setting Item
Crossfade Time
Setting Range
Setting Range
Setting Range
0 – 10 s, 0.5 s steps
[Initial Preset Memory Settings]
Setting Item
Preset Memory
LAST MEMORY , 1 – 16
[Contact Input/Output Settings]
Setting Item
Contact Input
Memory (factory-preset: 1 – 8), Volume Up/Down, Channel On/Off
Stereo input, None (factory-preset: 9 – 24)
Contact Output
Normally break (factory-preset: 9 – 24), Normally make,
Memory (factory-preset: 1 – 8), Channel On/Off,
Contact input status, Stereo input
[RS-232C Port Settings]
Setting Item
Control Mode
Setting Range
UPDATE, REMOTE, PC CTRL
RS-232C transmission rate
115200, 38400, 19200, 9600 bps
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20. SPECIFICATIONS
20.1. D-901 Digital Mixer
Power Source
Power Consumption
Frequency Response
Input
100 – 120 V, 230 V AC, 50/60 Hz
40 W
20 – 20,000 Hz, 1 dB ( 4 dB* input)
Max. 12 channels, modular construction (modules optional)
Max. 8 channels, modular construction (modules optional)
12 filters (auto/dynamic)
Output
Feedback Suppression
Function
Auto Mixing Function
Auto Mixing Group
Equalizer/Filter
Ducker (auto muting), NOM attenuation
4 groups
Parametric equalizer: 20 – 20,000 Hz, 15 dB, Q: 0.267 – 69.249
Filtering: High-pass filter
Low pass filter
Notch filter
20 – 20,000 Hz, 6 dB/oct, 12 dB/oct
20 – 20,000 Hz, 6 dB/oct, 12 dB/oct
20 – 20,000 Hz, Q: 8.651 – 69.249
20 – 20,000 Hz, Q: 0.267 – 69.249
All-pass filter
High shelving filter 6 – 20,000 Hz, 15 dB
Low shelving filter 20 – 500 Hz, 15 dB
Horn equalizer
20 kHz, 0 to +18 dB (1 dB steps)
Crossover filter: 20 – 20,000 Hz, 6 dB/oct, 12 dB/oct, 18 dB/oct, 24 dB/oct
(Compressor mode)
Compressor
/Auto-Leveler
Threshold:
Ratio:
–20 to +20 dB (1 dB steps)
1:1, 2:1, 3:1, 4:1, 8:1, 12:1, 20:1, ∞:1
0.2 ms – 5 s
Attack time:
Release time: 10 ms – 5 s
Gain:
–∞ to +10 dB
(Auto-leveler mode)
Target level:
–20 to +20 dB (1 dB steps)
Maximum gain: 0 to +20 dB (1 dB steps)
Attack time: 10 ms – 10 s
Release time: 100 ms – 10 s
Delay
Delay time: 0 – 682.6 ms (0.021 ms steps)
Matrix
12 x 8
Crosspoint Gain
Preset Memory
Auxiliary Function
Control
–∞ to 0 dB (1 dB steps)
16
Protect function
RS-232C, D-sub connector (9 pins), Remote control module (option)
Preset memory selector key: 8
Front Panel Section
LCD screen, screen shift key (up/down/left/right), setting knob
Input level indicator:
Dual color LED
Output level indicator: Dual color LED
Channel selector key: 12 (input channel selection)
8 (output channel selection)
Channel volume control: 1 (input channel selection)
1 (output channel selection)
Rear Panel
Input module slot:
Output module slot:
6 (input/output module slot: 2)
2
Remote control module slot:
1
Operating Temperature
Finish
+5 to +40 °C
Panel: Aluminum, hair-line finish, black
Others: Pre-coated steel plate, black (30% glossy)
482.6 (w) x 132.6 (h) x 320 (d) mm (excluding projection)
6.9 kg
Dimensions
Weight
* 0 dB = 0.775 V
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
AC power cord (2 m) ............................................. 1
Rack mounting screw (5 x 12) ............................... 4
Fiber washer for M5 ............................................... 4
Rack mounting bracket (preinstalled on the unit) .. 2
Module mounting screw (spare) ............................ 4
Blank panel (preinstalled on the module slot) ........ 9
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20.2. D-921F Microphone/Line Input Module (Optional)
Input
2 channels, Mic/Line changeable
Mic: –50/–36 dB*, 4.7 kΩ, electronically-balanced,
equivalent to XLR-3-31 type
Line: –10/+4 dB*, 10 kΩ, electronically-balanced,
equivalent to XLR-3-31 type
Phantom power supply (+15 V, can be used when set for the microphone)
Ground lift switch
A/D Converter
24 bits
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB (+4 dB* input)
Over 100dB (IHF-A weighted) (+4 dB* input)
Total Harmonic Distortion Under 0.05% (+4 dB* input)
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
150 g
20.3. D-921E Microphone/Line Input Module (Optional)
Input
2 channels, Mic/Line changeable
Mic: –50/–36 dB*, 4.7 kΩ, electronically-balanced,
3-pin removable terminal block
Line: –10/+4 dB*, 10 kΩ, electronically-balanced,
3-pin removable terminal block
Phantom power supply (+15 V, can be used when set for the microphone)
Ground lift switch
A/D Converter
24 bits
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB (+4 dB* input)
Over 100dB (IHF-A weighted) (+4 dB* input)
Total Harmonic Distortion Under 0.05% (+4 dB* input)
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
140 g
• Accessories
3-pin removable terminal plug (preinstalled on the unit) ........... 2
20.4. D-922F Microphone/Line Input Module (Optional)
Input
2 channels, –50/–36/–10/+4 dB* (Selectable with the DIP switch), 4.7 kΩ,
electronically-balanced, equivalent to XLR-3-31 type
Phantom power supply (+15 V, can be set with the DIP switch)
Ground lift switch (can be set with the DIP switch)
20 bits
A/D Converter
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB (+4 dB* input)
Over 85 dB (IHF-A weighted) (+4 dB* input)
Total Harmonic Distortion Under 0.2% (+4 dB* input)
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
135 g
* 0 dB = 0.775 V
Note: The design and specifications are subject to change without notice for improvement.
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20.5. D-922E Microphone/Line Input Module (Optional)
Input
2 channels, –50/–36/–10/+4 dB* (Selectable with the DIP switch), 4.7 kΩ,
electronically-balanced, 3-pin removable terminal block
Phantom power supply (+15 V, can be set with the DIP switch)
Ground lift switch (can be set with the DIP switch)
20 bits
A/D Converter
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB (+4 dB* input)
Over 85 dB (IHF-A weighted) (+4 dB* input)
Total Harmonic Distortion Under 0.2% (+4 dB* input)
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
125 g
• Accessories
3-pin removable terminal plug (preinstalled on the unit) ........... 2
20.6. D-936R Stereo Input Module (Optional)
Input
4 stereo inputs (Selection of 1 stereo or mixing or all 4 stereo inputs)
–10 dB*, 10 kΩ, RCA pin jack
24 bits
A/D Converter
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB (+4 dB* input)
Over 100dB (IHF-A weighted)
Total Harmonic Distortion Under 0.05%
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
145 g
20.7. D-923AE Digital Input Module (Optional)
Input
2 channels, 2.0 – 7.0 V (p-p), 110 Ω, equivalent to XLR-3-31
Applicable Format
Sampling Frequency
Finish
Dimensions
Weight
AES/EBU (2 channel multiplexed)
32 – 48 kHz
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
130 g
20.8. D-937SP Digital Input Module (Optional)
Input
Stereo 1 channel (Selectable one of 4 inputs)
0.5 V (p-p), 75 Ω, Coaxial RCA pin jack x 2
Square optical connector x 2
S/PDIF (2 channel multiplexed)
32 – 48 kHz
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
130 g
Applicable Format
Sampling Frequency
Finish
Dimensions
Weight
* 0 dB = 0.775 V
Note: The design and specifications are subject to change without notice for improvement.
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20.9. D-971M Line Output Module (Optional)
Output
4 channels, +4 dB*, adaptable load of over 600 Ω, electronically-balanced,
equivalent to XLR-3-32 type
D/A Converter
24 bits
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB
Over 100dB (IHF-A weighted)
Total Harmonic Distortion Under 0.05%
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
165 g
20.10. D-971E Line Output Module (Optional)
Output
4 channels, +4 dB*, adaptable load of over 600 Ω, electronically-balanced,
3-pin removable terminal block
D/A Converter
24 bits
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB
Over 100dB (IHF-A weighted)
Total Harmonic Distortion Under 0.05%
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
140 g
• Accessories
3-pin removable terminal plug (preinstalled on the unit) ........... 2
20.11. D-971R Line Output Module (Optional)
Output
4 channels (2 outputs for each channel), –10 dB*,
adaptable load of over 600 Ω, RCA pin jack
24 bits
D/A Converter
Sampling Frequency
Frequency Response
Dynamic Range
48 kHz
20 – 20,000 Hz, 1 dB
Over 100dB (IHF-A weighted)
Total Harmonic Distortion Under 0.05%
Finish
Panel: Pre-coated steel plate, black (30% glossy)
Dimensions
Weight
35 (w) x 119.5 (h) x 178.4 (d) mm
150 g
20.12. D-972AE Digital Output Module (Optional)
Output
4 channels, 5.0 V (p-p), 110 Ω, equivalent to XLR-3-32
Applicable Format
Sampling Frequency
Finish
Dimensions
Weight
AES/EBU (2 channel multiplexed)
48 kHz
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
130 g
• Accessories
Ferrite clamp ............................................................................. 2
* 0 dB = 0.775 V
Note: The design and specifications are subject to change without notice for improvement.
92
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20.13. D-961SP Digital Output Module (Optional)
Output
Stereo 2 channels (with splitter, each pair of optical output and coaxial output
in parallel),
0.5 V (p-p), 75 Ω, Coaxial RCA jack x 2
Square optical connector x 2
S/PDIF (2 channel multiplexed)
48 kHz
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
130 g
Applicable Format
Sampling Frequency
Finish
Dimensions
Weight
20.14. D-981 Remote Control Module (Optional)
Contact Input
COM + Terminals 1 – 8: Open voltage: 5 V DC, short-circuit: 5 mA,
10-pin removable terminal block
Any preset memory can be recalled.
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
Volume can be turned UP or DOWN for any input and output channels.
Control system: 1 step variation for no-voltage make single pulse of over
100 ms
Preset Memory
Selection
Volume
1 step continuous operation for every 70 ms for no-voltage
make of over 100 ms. Can be reset when at break.
Variable range: –∞ dB to +10 dB
Any input/output channels can be turned ON and OFF.
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
Any stereo input can be selected.
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
COM + Terminals 1 – 8: No-voltage make contact input,
contact capacity: 24 V DC, 100 mA
Channel
Stereo Selection
Contact Output
removable terminal block
Finish
Dimensions
Weight
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
125 g
Note: The design and specifications are subject to change without notice for improvement.
• Accessories
10-pin removable terminal plug (preinstalled on the unit) ......... 2
93
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20.15. D-983 Remote Control Module (Optional)
Contact Input
COM + Terminals 1 – 24: Open voltage 5 V DC, short-circuit current 5 mA,
RJ45 connector x 4
Any preset memory can be recalled.
Preset Memory
Selection
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
Any input/output channel volume can be turned UP or DOWN.
Control method: 1 step variation with no-voltage make single pulse of over
100 ms
Volume Control
1 step continuous operation for every 70 ms for no-voltage
make of over 100 ms. Can be reset when at break.
Variable range: –∞ dB to +10 dB
Channel
Any input/output channel can be turned ON and OFF.
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
Input stereo channel of the D-936R (optional) or the D-937SP (optional) can
be selected.
Stereo Selection
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
COM + Terminals 1 – 16: No-voltage make contact,
contact capacity: 24 V DC, 100 mA,
Contact Output
RJ45 connector x 4
Finish
Dimensions
Weight
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
170 g
20.13. D-984VC VCA Control Module (Optional)
VCA Control Input
+5 V, GND, Terminals 1 – 20 (12 Input channels, 8 output channels),
RJ45 connector x 4
Control contacts: Volume control of each input/output channel
Variable range: –∞ dB to +0 dB
Contact Input
COM + Terminals 1 – 8: Open voltage 5 V DC, short-circuit current 5 mA,
RJ45 connector x 2
Any preset memory can be recalled.
Preset Memory
Selection
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
Any input/output channel volume can be turned UP or DOWN.
Control method: 1 step variation with no-voltage make single pulse of over
100 ms
Volume Control
1 step continuous operation for every 70 ms for no-voltage
make of over 100 ms. Can be reset when at break.
Variable range: –∞ dB to +10 dB
Channel
Any input/output channel can be turned ON and OFF.
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
Input stereo channel of the D-936R (optional) or the D-937SP (optional) can
be selected.
Stereo Selection
Control method: No-voltage make of over 100 ms or
no-voltage make single pulse of over 100 ms
COM + Terminals 1 – 8: No-voltage make contact,
contact capacity: 24 V DC, 100 mA,
Contact Output
RJ45 connector x 2
Finish
Panel: Pre-coated steel plate, black (30% glossy)
35 (w) x 119.5 (h) x 178.4 (d) mm
170 g
Dimensions
Weight
Note: The design and specifications are subject to change without notice for improvement.
133-12-836-7E
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