Yamaha Music Mixer M3000A User Manual

MIXING  
CONSOLES  
-24/-40C/-56C  
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than any single job requires. The  
channel strips so that no signal degradation  
occurs. And how about a 20 x 8 submix  
matrix output that can provide as many as  
eight independent mixes of the signals on  
the M3000As 16 mix busses, the stereo  
buss, and matrix sub inputs?  
We have no way of knowing exactly what  
you need from a mixing console, but we  
have spared no effort or expense in ensur-  
ing that the M3000A offers the versatility  
you need to get any job done with maxi-  
mum ease and efficiency.  
(Radio Frequency) noise generated by  
motors, video monitors, and digital equip-  
ment of almost any kind can make the  
cleanest, quietest circuitry virtually worth-  
less. The M3000A boasts outstanding RF  
noise rejection, so you can use it just about  
anywhere without picking up unwanted  
interference that can degrade your signal.  
M3000A’s GA (Group/Aux) Diversity system  
gives you the flexibility to match the  
console’s buss configuration to a wide  
range of signal-routing requirements. 8 of  
its 16 mix busses can be switched from  
auxiliary send status to group type opera-  
tion in 2-buss groups, so you can have 2  
groups and 14 auxiliary sends, 6 groups  
and 10 auxiliary sends, or any other  
combination the job requires.  
Specs You Can Trust  
Yamaha never has tweaked” specifica-  
tions. Never will. It’s amazing how medio-  
cre specs can be made to look impressive  
by simply optimizing test conditions. The  
electrical specifications we publish are all  
brutally honest, measured under the stated  
and/or industry-standard conditions. When  
in doubt, we urge you to use the most  
sensitive sound measurement devices  
available: your own ears. They’ll tell you  
who you can trust.  
Features For Unmatched  
Control Flexibility  
Clean Signals From Input  
To Output  
In addition to the GA Diversity system,  
the M3000A expands the limits of console  
control versatility with several innovative  
features. A scene memory with MIDI-  
control capability, for example, lets you  
store and instantly recall mute settings for  
all input channels and mix busses output  
from the panel controls, or from an external  
MIDI device. You can even use a MIDI  
sequencer or a computer running MIDI  
sequencing software for total mute automa-  
tion. Then there’s VCA grouping: all input  
channels can be individually assigned to  
any of 8 VCA groups, then the correspond-  
ing VCA master fader will simultaneously  
control the relative levels of all assigned  
channels via VCAs built right into the  
Many mixer circuits must handle low-  
level signals - the head amplifiers, for  
example - and must be designed with extra  
care or they can be a major source of noise  
and distortion. Other critical design criteria  
include inter-stage matching, internal  
impedance, circuit layout, grounding,  
component selection, and a veritable  
plethora of other factors that affect per-  
formance and the mixer’s overall sound.  
Here’s where Yamaha technology makes a  
real difference. Whether you’re using  
microphone or line input, Yamaha’s high-  
performance circuitry gives you an excep-  
tionally clean, quiet signal from input to  
output. But then there’s RF rejection. RF  
Rugged & Reliable  
From connectors to controls to chassis,  
the GA consoles are built to last. Whether  
used in an installation or taken on the road,  
these attractively-finished, rugged consoles  
will keep on performing with the utmost  
reliability.  
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MONO & STEREO INPUT CHANNELS  
as post-fader group sends: The send  
Inputs  
control is bypassed, and the send switch  
functions as a group assign switch. For  
even further flexibility the M1 through M4  
control group and the M5 through M8  
control group can be independently  
switched for pre- or post-fader send.  
The M3000A has 56, 40 or 24 mono and  
4 stereo input channels with balanced  
XLR-type microphone/line inputs. Phantom  
power is independently switchable for all  
mono inputs, providing direct compatibility  
with high-performance phantom-powered  
condenser microphones and DI boxes.  
Stereo line sources can be directly  
Eight Aux Sends  
connected to either of 4 stereo input  
channels (a total of eight inputs) via  
switchable “A” or “B” inputs: the “A” inputs  
are balanced XLR type connectors, and  
the “B” inputs are standard RCA pin jacks  
type for compatibility with the widest  
possible range of line sources.  
The M9 through M12 controls function  
as mono auxiliary sends, feeding the  
corresponding mix buss. The remaining  
four sends are configured as dual stereo  
sends (13/14 and 15/16) with balance  
controls. These controls can be switched  
to receive the pre- or post-fader signal in  
groups of four (i.e. the four mono sends as  
one group and the two stereo sends as the  
second group).  
Channel Insertion  
Insert send/return patch points are  
included on all mono channels for conven-  
ient insertion of compressor/limiters (a  
must for top-quality vocal sound), equaliz-  
ers, or any other outboard equipment you  
might need to apply to individual chan-  
nels.  
Stereo Assign & Pan/Balance  
Controls  
Stereo assign switches and pan  
controls on each mono channel - stereo  
assign switches and balance controls on  
the stereo channels - assign the corre-  
sponding channel signal to the console’s  
stereo buss.  
Input Controls & Level Matching  
Gain trim controls with a 44dB range on  
all mono inputs, and independent 40dB  
gain controls for the A and B inputs on the  
stereo channels, facilitate optimum level  
matching with a wide range of sources.  
The mono inputs additionally feature 26dB  
pad switches and phase switches for easy  
input phase correction.  
3-point Level Indicators  
All mono and stereo channels feature 3-  
point level indicators for accurate monitor-  
ing of pre-fader signal levels. SIGNAL,  
NOM (nominal), and PEAK LEDs provide a  
broader “view” of channel signal levels  
than the usual one- or two-LED indicators.  
Filters & Flexible 4-band  
Channel EQ  
Channel Faders, Pre-fader  
All mono channels feature a switchable  
high-pass filters, sweepable from 20 Hz to  
400 Hz to effectively eliminate rumble and  
other low-frequency noise. The mono  
channels also feature a very flexible 4-  
band equalizer which provides sweepable  
frequencies for all four bands as well as  
switchable bandwidth for the HI MID and  
LO MID bands. The stereo channels offer  
fixed-frequency 4-band equalization with  
switchable HI MID and LO MID bandwidth.  
EQ bypass switches are provided on all  
channels so equalization can be punched  
in or out as required without having to  
change settings.  
Listen, & Channel ON Switches  
Smooth, noise-free 100-mm linear  
faders make it easy to set up the optimum  
balance between channels, while PFL  
(Pre-Fader Listen) switches allow conven-  
ient solo monitoring of the channel’s pre-  
fader signal. All channels additionally  
feature channel on switches that can be  
used to switch the channel signal into or  
out of the mix without changing any other  
settings.  
VCA Group Assign  
A feature taken directly from Yamaha’s  
industry-leading PM3500 series mixing  
consoles, VCA grouping allows channels  
to be grouped and assigned to any of  
eight VCA master faders in the master  
section without actually re-routing the  
channel signals, thus maintaining unsur-  
passed signal quality. The VCA GROUP  
switches (1 … 8) next to each channel  
fader assign the channel to the corre-  
sponding VCA master fader. The high-  
performance VCAs (Voltage Controlled  
Amplifiers) are located immediately before  
the channel faders, and thus function in  
essentially the same way as the channel  
faders themselves, adjusting the level of  
the channel’s post fader signal.  
Eight Group/Aux Sends  
The M1 through M8 “Mix Send” controls  
feed the M3000A console’s unique GA  
Diversity system. When a FIX/VAR switch  
in the master section is set to the “VAR”  
position, the corresponding pair of send  
controls (1/2, 3/4, 5/6, or 7/8) function as  
auxiliary sends: i.e. the send control  
adjusts the level of the signal sent to the  
corresponding mix buss, and the send  
switch (M1 … M8) simply turns the  
corresponding send on or off. If a FIX/VAR  
switch is set to the “FIX” position, the  
corresponding send controls then function  
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MASTER CONTROLS  
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ally turn the applicable channels and busses  
off or on as required. A MIDI sequencer or  
computer, for example, could be used for  
complete mute automation. And since the  
M3000A also transmits MIDI program change  
messages whenever a scene is recalled, it can  
be linked to MIDI-controllable signal proces-  
sors so that appropriate effects are recalled  
automatically. Furthermore, scene data can be  
dumped to a MIDI data recorder or other  
storage device for long-term storage.  
GA Diversity FIX/VARI Switches  
The core of the GA consoles innovative GA  
Diversity system, these switches determine  
whether the corresponding pairs of sends on  
the input channels - M1 through M8 - function  
as auxiliary or group sends (see Eight Group/  
Aux Sends” for more details).  
Submix Matrix  
The matrix mix concept was a Yamaha  
innovation which has virtually become an  
industry standard in professional audio  
consoles. The M3000A features a 20 x 8  
matrix mix which allows the 16 mix buss  
signals, the stereo A signals, and the matrix L  
and R sub input signals to be mixed to eight  
balanced outputs for extra stage monitor  
mixes, zoned speaker mixes, or just about any  
type of mix the job requires. All eight matrix  
mixes include mix on/ off switches and AFL  
switches.  
Mix Buss Masters  
The first eight mix buss master strips - M1  
through M8 - receive either the aux signal or  
the group signal from the channel sends,  
depending on the setting of the corresponding  
GA Diversity FIX/ VARI switch. Mix masters M9  
through M16 receive the auxiliary signal from  
the corresponding channel send controls.  
While M9 through M12 have independent  
controls, M13 through M16 are configured as  
dual stereo masters (M13/ 14 and M15/ 16).  
Each of these mix master control groups has  
its own linear fader as well as a TO STEREO”  
switch and pan control (balance controls on  
the stereo pairs) which assign the mix buss  
signal to the consoles stereo buss. TO  
MATRIXswitches assign the corresponding  
mix master signal to the consoles matrix mix  
(below). The mix buss master strips AFL (After-  
Fader Listen) switches for convenient solo  
monitoring, and ON/ EDIT switches equivalent  
to those on the input channels.  
Flexible Monitoring & Metering  
Convenient monitoring is provided by  
balanced monitor outputs and phones output  
with independent level controls. In addition to  
monitoring the stereo buss, the monitor signal  
can be derived from either of the M3000As  
two 2TR IN tape inputs. Theres also a L+R  
switch which sums the left- and right-channel  
signals for mono monitoring.  
A total of 12 large, illuminated VU meters  
with built-in peak-reading LEDs provide  
accurate visual level monitoring. Eight of these  
can be switched to display the levels on mix  
busses 1 through 8 or 9 through 16, or the  
levels at the eight matrix outputs. The remain-  
ing four display the stereo A L and R and cue L  
and R levels.  
VCA Group Masters  
The eight VCA group masters include a 100-  
mm linear fader which controls the assigned  
channel VCAs (see VCA Group Assign”), a  
VCA mute switch which mutes the assigned  
channel VCAs, and a nominal level LED.  
A VCA EXTERNAL I/ O connector allows two  
M3000A consoles to be connected - or an  
M3000A can be connected to any other VCA-  
compatible Yamaha console such as the  
PM3500 - for linked VCA group control.  
128 MIDI Scene Memory/  
8 Mute Groups  
The M3000A console the channel, mix  
master, and stereo A on/ off functions are  
electronically controlled by a microcomputer  
and MIDI interface. Up to 128 mute scenes”  
can be stored in memory and recalled either  
via the panel controls or an external MIDI  
device. Eight DIRECT RECALL switches can be  
used for instant recall of the most often-used  
scenes, while others can be recalled via the  
numeric keys. The memory contents can be  
checked and edited at any time without  
actually affecting the mix.  
Oscillator/Talkback Module  
In addition to a panel microphone connec-  
tor, level control and switch for talkback, the  
M3000A includes a versatile oscillator which  
provides pink noise as well as 10 kHz, 1 kHz,  
and 100 Hz sine waves for precise calibration  
and testing. The oscillator signal is assignable  
to the mix busses in pairs or groups of four  
(1/ 2, 3/4, 5/ 6. 7/ 8, 9 through 12, and 13  
through 16) and/ or the stereo buss.  
Mix Outputs, Inserts & Sub Inputs  
All 16 mix busses feed balanced XLR type  
outputs. They also feature insert patch points  
for auxiliary signal processing, as well as sub  
inputs which allow external line-level signals to  
be individually added to the mix signals as  
required.  
Dual Stereo Masters  
The stereo buss feeds two stereo output  
pairs: stereo A and stereo B. The main linear  
stereo fader feeds the balanced stereo A  
outputs, with AFL listen capability and a “TO  
MATRIXrouting switch. The stereo B signal  
feeds a second balanced output pair via the  
rotary stereo B level control.  
A utility function allows the DIRECT RECALL  
switches to be re-assigned for mute group”  
switching, which allows mutiple mute scenes  
to be engaged at the same, adding the mute  
assignments for all active scenes.  
Lamp Connectors  
Connectors for up to three Yamaha LA1800  
console lamps are provided on the M3000A  
rear panel.  
In addition to recalling complete scenes,  
external MIDI control can be used to individu-  
PW3000MA Specifications  
Power consumption  
PW3000MA Power Supply  
A newly developed, high-performance PW3000MA power supply unit is available as an  
optional accessory for the M3000A mixing console. Two PW3000MA units can be  
parallel connected so that if one fails the other will automatically take over — with no  
need for any extra automatic switchover equipment.  
U.S. and Canadian model: 120V AC,60Hz / 500W 600 VA  
European model:  
Australian model:  
230V AC, 50Hz/ 500W  
240V AC, 50Hz/ 500W  
Dimensions (H × D × W)  
103.5 × 455 × 480 mm (4-1/16” × 17-5/16” × 18-7/8”)  
Weight  
15kg (33.1 Ibs)  
Accessory Connecting cable (1m) × 1  
Rear Panel  
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M3000A-56C Front and Rear Panels  
M3000A-40C Front and Rear Panels  
M3000A-24 Front and Rear Panels  
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BLOCK DIAGRAM  
H I  
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H I  
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Q
Q
H I - M I D  
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f
H I - M I D  
Q
Q
g
f
L O - M I D  
L O - M I D  
g
L O  
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G A I N  
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Input specifications  
Input Level  
Nominal  
Gain  
Trim  
Actual Load  
Impedance  
For Use With  
Nominal  
Connection  
PAD  
Connector In Mixer  
Sensitivity *6  
86 dB (0.039 mV)  
60 dB (0.775 mV)  
42 dB (6.16 mV)  
16 dB (123 mV)  
56 dB (1.23 mV)  
16 dB (123 mV)  
46 dB (3.88 mV)  
16 dB (123 mV)  
66 dB (0.388 mV)  
2 dB (0.616 V)  
Max before Clip  
40 dB (0.775 mV)  
14 dB (155 mV)  
+4 dB (1.23 V)  
0
60 dB (0.775 mV)  
34 dB (15.5 mV)  
16 dB (123 mV)  
+10 dB (2.45 V)  
30 dB (24.5 mV)  
+10 dB (2.45 V)  
20 dB (77.5 mV)  
+10 dB (2.45 V)  
50 dB (2.45 mV)  
+4 dB (1.23 V)  
CH INPUT  
(1~24)  
(1~40)  
(1~56)  
60  
16  
50600 Mics  
&
600 Lines  
26  
0
3 kΩ  
5 kΩ  
XLR-3-31 type *1  
26  
+30 dB (24.5 V)  
10 dB (245 mV)  
+30 dB (24.5 V)  
0 dB (0.775 V)  
30  
+10  
20  
+10  
ST CH A INPUT  
[L, R] (1~4)  
600 Lines  
XLR-3-31 type *1  
Phone Jack *3  
ST CH B INPUT  
[L, R] (1~4)  
10 kΩ  
10 kΩ  
10 kΩ  
600 Lines  
50600 Mics  
600 Lines  
+30 dB (24.5 V)  
20 dB (77.5 mV)  
+24 dB (12.3 V)  
+12.2 dB (3.15 V)  
TALKBACK IN  
XLR-3-31 type *2  
XLR-3-31 type *1  
Phone Jack *3  
2TR IN 1 [L, R]  
2TR IN 2 [L, R]  
13.8 dB (158 mV)  
7.8 dB (316 mV)  
CUE SUB IN [L, R]  
2 dB (0.616 V)  
MATRIX SUB IN [L, R]  
10 kΩ  
10 kΩ  
600 Lines  
600 Lines  
+4 dB (1.23 V)  
0 dB (0.775 V)  
Phone Jack (TRS) *4  
Phone Jack (TRS) *5  
+24 dB (12.3 V)  
+20 dB (7.75 V)  
STEREO SUB IN [L, R] MIX  
SUB IN (1~16)  
6 dB (388 mV)  
26 dB (38.8 mV)  
10 dB (245 mV)  
CH INSERT IN (1~24, 40)  
STEREO INSERT IN [L, R] MIX  
INSERT IN (1~16)  
*4 SUB IN Phone Jacks (TRS) are unbalanced (T=SIGNAL, R=GND, S=GND).  
*5 INSERT Phone Jacks (TRS) are unbalanced (T=OUTPUT, R=INPUT, S=GND).  
*6 Sensitivity is the lowest level that will produce an output of +4 dB (1.23 V), or the nominal  
output level when the unit is set to maximum level.  
0 dB=0.775 Vrms.  
*1 XLR connectors are balanced.  
*2 XLR connector is unbalanced.  
*3 Phone Jacks are unbalanced.  
Output specifications  
Output Level  
Max before Clip  
Actual Source  
Impedance  
Connection  
For Use With Nominal  
Connector In Mixer  
Nominal  
STEREO A OUT [L, R]  
STEREO B OUT [L, R]  
MIX OUT (1~16)  
MONITOR OUT [L, R]  
MATRIX OUT (1~8)  
150 Ω  
600 Lines  
XLR-3-32 type *1  
+4 dB (1.23 V)  
+24 dB (12.3 V)  
CH DIRECT OUT (1~24, 40)  
CH INSERT OUT (1~24, 40)  
600 Ω  
600 Ω  
10 kLines  
10 kLines  
0 dB (0.775 V)  
0 dB (0.775 V)  
Phone Jack (TRS) *2  
Phone Jack (TRS) *3  
+20 dB (7.75 V)  
+20 dB (7.75 V)  
STEREO INSERT OUT [L, R]  
MIX INSERT OUT (1~16)  
8 Phones  
1 mW  
3 mW  
20 mW  
75 mW  
PHONES OUT [L, R]  
100 Ω  
Stereo Phone Jack *4  
40 Phones  
*3 INSERT Phone Jacks (TRS) are unbalanced (T=OUTPUT, R=INPUT, S=GND).  
*4 Stereo Phone Jack is unbalanced.  
0 dB=0.775 Vrms.  
*1 All XLR connectors are balanced.  
*2 CH DIRECT OUT Phone Jacks (TRS) are unbalanced (T=SIGNAL, R=GND, S=GND).  
M3000A Dimensions  
PW3000MA Dimensions  
480mm (18-7/8")  
M3000A-24: 1515mm (59-5/8")  
M3000A-40C: 2043mm (80-7/16")  
M3000A-56C: 2571mm (101-1/4")  
308mm (12-1/8")  
86mm  
86mm  
(3-3/8")  
(3-3/8")  
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General specifications  
Total Harmonic Distortion  
(Master output)  
Less than 0.1% (THD + N)  
ST CH INPUT Equalization  
+15, 15 dB maximum  
HIGH  
20 Hz20 kHz @ +14 dB 600 Ω  
20 kHz (peaking, Q=0.667)  
3 kHz (peaking, Q=1.41/2.88)  
800 Hz (peaking, Q=1.41/2.88)  
50 Hz (peaking, Q=0.667)  
Frequency Response  
(Master Output)  
0 + 1, -3 dB  
20 Hz20 kHz @ +4 dB 600 Ω  
HIGH-MID  
LOW-MID  
LOW  
Hum & Noise (20 Hz–20 kHz) *1 128 dB  
Rs = 150 Ω  
Equivalent Input Noise.  
97 dB  
Residual Output Noise.  
(MATRIX[1-8] Output)  
Phantom Power +48VDC is applied to balanced inputs (via 6.8 kcurrent-limiting/  
isolation resistors) for powering condenser microphones ; may be turned  
ON or OFF via rear-panel phantom Master switch.  
Input Gain = Max.  
Input Pad = OFF  
||  
99 dB  
Residual Output Noise. (OTHERS)  
When Master is ON, individual channels may be turned ON or OFF via  
+48V switches (with red LED) on each input channel.  
Input sensitivity=-60 dB  
64 dB (68 dB S/N)  
MIX OUT Master Level control and one CH  
fader at nominal level.  
STEREO OUT Master fader at nominal level and  
all CH assign SWs off and all MIX to ST SWs  
off.  
CH LED Indicators  
PEAK  
LED (red) built into each CH INPUT turns on  
when pre-Fader level reaches +18 dB.  
LED (yellow) built into each CH INPUT turns on  
when pre-Fader level reaches 0 dB.  
LED (green) built into each CH INPUT turns on  
when pre-Fader level reaches 10 dB.  
80 dB (84 dB S/N)  
NOM  
75 dB (79 dB S/N)  
81 dB (85 dB S/N)  
90 dB (94 dB S/N)  
MIX OUT (VARIABLE) Master Level control at  
nominal level and all CH assign SWs off.  
MIX OUT (FIX) Master Level control at nominal  
level and all CH assign SWs off.  
MATRIX OUT Master level control at nominal  
level and all Matrix Mix controls at minimum  
level.  
SIGNAL  
ST CH LED Indicators  
PEAK  
LED (red) built into each ST CH INPUT turns on  
when pre-Fader [L+R] level reaches +18 dB.  
LED (yellow) built into each ST CH INPUT turns  
on when pre-Fader [L+R] level reaches 0 dB.  
LED (green) built into each ST CH INPUT turns  
on when pre-Fader [L+R] level reaches 10 dB.  
NOM  
Crosstalk  
SIGNAL  
80 dB @  
70 dB @  
50 dB @  
1 kHz adjacent inputs.  
1 kHz input to output. (CH INPUT)  
1 kHz input to output. (ST CH INPUT)  
Oscillator/Noise  
Switchable sine wave @ 100 Hz, 1 kHz or 10 kHz (1% T.H.D. @ +4 dB  
Maximum Voltage Gain  
output), or pink noise.  
70 dB  
60 dB  
80 dB  
90 dB  
84 dB  
84 dB  
80 dB  
100 dB  
CH INPUT to DIRECT OUT  
CH INPUT to CH INSERT OUT  
Scene Memory  
Direct Scene Memory recall switches (18)  
Switchable Scene Memory recall (1128)  
CH INPUT to MIX OUT (VARIABLE, Pre Fader)  
CH INPUT to MIX OUT (VARIABLE, Post Fader)  
CH INPUT to MIX OUT (FIX; 18, Post Fader)  
CH INPUT to STEREO A OUT (CH to ST)  
CH INPUT to STEREO B OUT (CH to ST)  
CH INPUT to STEREO A OUT (VARIABLE,  
MIX; Post Fader) (via MIX to ST)  
CH INPUT to MATRIX OUT (VARIABLE,  
MIX; Post Fader) (via MIX to MATRIX)  
CH INPUT to MONITOR OUT (PFL)  
ST CH A INPUT to MIX OUT (VARIABLE;112,  
Pre Fader)  
ST CH A INPUT to MIX OUT (FIX;18)  
ST CH B INPUT to MIX OUT (FIX;18)  
TALKBACK IN to MIX OUT  
SUB IN to STEREO B OUT, MONITOR OUT,  
MATRIX OUT  
VU Meters  
12 illuminated meters  
(0VU= +4 dB output @ 600 load)  
#1 ; MIX1 / MIX9 / MATRIX1  
#2 ; MIX2 / MIX10 / MATRIX2  
#3 ; MIX3 / MIX11 / MATRIX3  
#4 ; MIX4 / MIX12 / MATRIX4  
#5 ; MIX5 / MIX13 / MATRIX5  
#6 ; MIX6 / MIX14 / MATRIX6  
#7 ; MIX7 / MIX15 / MATRIX7  
#8 ; MIX8 / MIX16 / MATRIX8  
#9 ; STEREO A L  
96 dB  
70 dB  
47 dB  
54 dB  
44 dB  
70 dB  
6 dB  
#10; STEREO A R  
#11; STEREO B L / CUE L  
#12; STEREO B R / CUR R  
10 dB  
6 dB  
17.8 dB  
SUB IN to STEREO A OUT, MIX OUT  
2TR IN 1 to MONITOR OUT  
2TR IN 2 to MONITOR OUT  
VU Meter Peak Indicators  
LED(red) built into each VU meter turns on when output signal is above  
the level 3 dB lower than clipping level.  
CH INPUT PAD SW  
26 dB  
Dimension  
Height  
CH INPUT GAIN control  
ST CH INPUT GAIN control  
44 dB variable  
265 mm (10-6/7)  
874 mm (34-3/8)  
56C: 2571 mm (101-1/4)  
40C: 2043mm (80-7/16)  
24: 1515mm (59-5/8)  
Depth  
Width  
40 dB variable (ST CH A INPUT)  
30 dB variable (ST CH B INPUT)  
CH INPUT High Pass Filter  
12 dB/octave roll-off below 20400 Hz at 3 dB  
point.  
Weight 56C: 128 kg (282.2 Ibs.), 40C: 108 kg (238.1 Ibs.), 24: 85 kg (187.4 Ibs.)  
CH INPUT Equalization  
+15, 15 dB maximum  
HIGH  
Accessory  
Connecting cable (3m) × 1  
1k20 kHz (peaking, Q=0.667)  
4008 kHz (peaking, Q=1.41/2.88)  
801.6 kHz (peaking, Q=1.41/2.88)  
30600 Hz (peaking, Q=0.667)  
HIGH-MID  
LOW-MID  
LOW  
0 dB is referenced to 0.775 Vrms.  
*1 Hum & Noise are measured with a 6 dB/octave filter @ 12.7 kHz;equivalent to a  
20 kHz filter with infinite dB/octave attenuation.  
YAMAHA Web Site  
All specifications subject to change without notice.  
This document is printed on chlorine free (ECF) paper.  
For details please contact:  
LPA438 0033  
Printed in Japan  
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