User’s Guide
for the
CRATE AUDIO
PM62S, PM82S
& PM82T
Powered Mixers
with
Digital Signal Processing
In order to achieve maximum performance from
your new Crate Audio Mixer we recommend that
you read this user’s guide prior to its use.
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PM62S/PM82S/PM82T Powered Mixers
Features:
The Input Channels:
•
•
•
•
•
•
•
Peak LEDs for optimum level settings
Three bands of equalization
Monitor, effects, and pan controls
Output level controls
Pad switch (mono channels) to accommodate “hot” signals
XLR balanced low impedance mic input jacks
1/4” balanced high-Z line input jacks
The Master Section:
• Tri-Power! Three internal power amplifiers (PM82T only) - one for the monitor, two for the
main speaker outputs
• Two internal power amplifiers (PM62S, PM82S) for the main speaker outputs
• Built in Limiter to prevent overdriving the amplifiers
• Two 7-band graphic EQs - one for monitor, one for mains
• Five-step LED displays with Limiter indicators for monitoring the output signals
• Effects send and return controls
• Switchable phantom power (+48V)
• 16-Program Digital Signal Processor (DSP) with on/off switch
• Footswitch jack for remote control of DSP on/off
• Headphones jack with level control
• DSP line out/aux in jacks for external effects
• Tape in and tape out jacks for recording and play back
• Main and monitor line out jacks
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequen-
cy energy and, if not installed and used in accordance with the instructions, may cause harmful interfer-
ence to radio communications. However, there is no guarantee that interference will not occur in a par-
ticular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications to this device not expressly approved by SLM Electronics could void the user’s
authority to operate the equipment under FCC rules.
3
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PM62S/PM82S/PM82T Powered Mixers
The Mono Input Channels:
1. PEAK LED: This LED illuminates when the input signal
nears clipping. During normal operation, this LED will flash
on strong signal peaks. If the LED remains illuminated,
depress the Pad switch (#9) and/or reduce the level of the
signal connected to the input jack (#10,11).
1
2
3
4
5
6
7
8
2. HIGH: Use this control to adjust the high frequency level
for the channel.
3. MID: Use this control to adjust the midrange frequency
level for the channel.
4. LOW: Use this control to adjust the low frequency level for
the channel.
5. MON: Use this control to adjust the amount of the chan-
nel’s signal sent to the monitors.
6. EFFECT: Use this control to adjust the amplitude of the
internal DSP effect (or external effects, if used) to be
applied to the channel’s signal.
7. PAN: Use this control to adjust the left-to-right balance of
the channel’s signal.
8. LEVEL: Use this control to adjust the channel’s output sig-
nal level.
9. PAD: Use this switch to accommodate “hot” input signals.
(Signals too strong to allow a useful setting of the gain con-
trol without causing the Peak LED - #1- to remain illuminat-
ed.) Depress this switch to engage the 20dB pad, thereby
reducing the input signal’s level to a more useable range.
9
10. HIGH-Z LINE: Use this jack to connect the output signal
from a high impedance microphone or a line level signal
(such as an instrument, rhythm machine, tape deck, etc.)
to the mixer by means of a shielded cable terminated with
a male 1/4” plug. Tip = “+,” ring = “–,” sleeve = shield.
10
11. MIC: Use this jack to connect the output signal from a low
impedance microphone to the mixer by means of a shield-
ed cable terminated with a male XLR plug. Pin 2 = “+,” pin
3 = “–,” pin 1 = shield.
11
4
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PM62S/PM82S/PM82T Powered Mixers
The Stereo Input Channels:
12. PEAK LED: This LED illuminates when the input
signal nears clipping. During normal operation, this
LED will flash on strong signal peaks. If the LED
remains illuminated, reduce the level of the signal
connected to the input jack (#20,21).
12
13
14
15
16
17
18
19
13. HIGH: Use this control to adjust the high frequency
level for the channel.
14. MID: Use this control to adjust the midrange fre-
quency level for the channel.
15. LOW: Use this control to adjust the low frequency
level for the channel.
16. MON: Use this control to adjust the amount of the
channel’s signal sent to the monitors.
17. EFFECT: Use this control to adjust the amount of
the internal DSP effect (or external effects, if used)
to be applied to the channel’s signal.
18. PAN: Use this control to adjust the left-to-right bal-
ance of the channel’s signal.
19. LEVEL: Use this control to adjust the channel’s out-
put signal level.
20. HIGH-Z LINE: Use these jacks to connect the out-
put signal from a stereo line level source (such as a
stereo instrument, rhythm machine, tape deck, etc.)
to the mixer by means of shielded cables terminat-
ed with male 1/4” plugs. Tip = “+,” ring = “–,” sleeve
= shield.
The LEFT (MONO) jack serves as a mono input that
will feed a single input signal to both the left and
right channels. For stereo signals, use the LEFT
(MONO) jack as the left channel input and the RIGHT
jack as the right channel input.
20
21. MIC: Use this jack to connect the output signal from
a low impedance microphone to the mixer by
21
means of a shielded cable terminated with a male
XLR plug. Pin 2 = “+,” pin 3 = “–,” pin 1 = shield.
5
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PM62S/PM82S/PM82T Powered Mixers
The Master Section:
22. DSP ON: This switch, when depressed, acti-
vates the internal digital signal processor.
23. PROGRAM: Use this rotary switch to select
the desired digital effect. The name of the
selected effect illuminates on the DSP display
panel (located above the On switch, #22). A
brief description of the DSP effects is provid-
25
24
ed on page 9.
26
24. MONITOR: Use this seven band graphic
equalizer to shape the monitor output signal.
This is useful for feedback control and to
compensate for room acoustics.
27
25. LIMITER/LED METER: The mixer employs
internal limiter circuits to prevent overdrive
distortion from being reproduced by the
amplifiers. The Limiter LED illuminates when
the monitor amplifier’s internal limiter circuit
is activated.
22
28
29
31
30
23
The five-step LED display directly below the
Limiter LED indicates the level of the moni-
tor’s output signal.
33
26. POWER LED: This LED will illuminate when
the mixer is turned on. (The power switch is
located on the mixer’s rear panel - see #51,
page 9.)
32
34
35
36
37
38
39
27. PHANTOM POWER: This switch, when at the
“on” position, applies +48 volts DC to pins 2
and 3 of each channel’s XLR MIC input jack.
The adjacent LED illuminates when the phan-
tom power is turned on.
28. EFF RET LEVEL: Use this control to adjust the
level of the internal DSP applied to the signal at
the Monitor Out jack (#47) and the Speakers -
Monitor jacks (PM82T only - #50, page 9).
40
41
29. MONITOR LEVEL: Use this control to adjust
the overall level of the signal at the Monitor
Out jack (#47) and the Speakers - Monitor jacks
(PM82T only - #50, page 9).
42
43
46
44
45
47
30. MAIN: Use this seven band graphic equalizer
to shape the main output signal. This is use-
ful for feedback control and to compensate for
room acoustics. Each slider controls both
main outputs simultaneously (see Speakers -
Left / Right, #48 on page 9).
6
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PM62S/PM82S/PM82T Powered Mixers
The Master Section (con’t):
31. LIMITER/LED METER: The mixer employs inter-
nal limiter circuits to prevent overdrive distortion
from being reproduced by the amplifiers. The
Limiter LEDs illuminate when either of the main
amplifiers’ internal limiter circuits are activated.
The two sets of five-step LED displays directly
below the Limiter LEDs indicate the levels of the
left and right main’s output signal.
40. DSP LINE OUT: Use this jack to send an output
signal to an external effects device. Connect this
jack to the effect’s input jack by means of a shield-
ed signal cable.
41. DSP FOOTSWITCH: Use this jack to connect a
footswitch to the mixer for remote on/off control of
the internal DSP. The footswitch must be a normal-
ly open / momentarily closed type (such as the
Crate model #FSIU). The wiring for the footswitch
is shown at the bottom of this page.
32. DSP SEND LEVEL: Use this control to adjust the
level of signal at the DSP Line Out jack (#40) and
to the internal DSP processor.
42.
(HEADPHONES): Use this jack to connect a
pair of stereo headphones to monitor the main out-
put signals. The level of the signal is adjusted by
the Headphones Level control (#34).
33. PEAK: This LED illuminates when the DSP signal
level nears clipping. During normal operation, this
LED will flash on strong signal peaks. If the LED
remains illuminated, reduce the DSP Send Level
control (#32).
43. AUX IN - LEFT / RIGHT: Use these jacks to con-
nect an external effects device’s output signal or to
feed another mixer’s signal into the mixer. These
jacks are post-input channel, pre-eq and pre-power
amp, and the signal levels are adjusted by the Aux
In Level control (#36).
34. HEADPHONES LEVEL: Use this control to adjust
the level of the signal at the
(Headphones) jack
(#42).
35. EFF RETURN LEVEL: Use this control to adjust
the level of the internal DSP applied to the Tape
Out jacks (#45), the Main Out Left / Right jacks
(#46), and the Speakers - Left / Right jacks (#48,
page 9).
44. TAPE IN - LEFT / RIGHT: Use these jacks to con-
nect the output signal from a tape deck or CD play-
er to the mixer. The signal level is adjusted by the
Tape In Level control (#37).
36. AUX IN LEVEL: Use this control to adjust the level
of the signal applied to the Main outputs from the
Aux In - Left / Right jacks (#43).
45. TAPE OUT - LEFT / RIGHT: Use these jacks to
connect the output of the mixer to a tape recorder.
These jacks are pre-eq, pre-master, and their sig-
nal level is adjusted by the channel Level controls
(#8, #19).
37. TAPE IN LEVEL: Use this control to adjust the
level of the signal from the Tape In - Left / Right
jacks (#44) applied to the Main outputs.
46. MAIN OUT - LEFT / RIGHT: Use these jacks to
connect the mixer’s pre-amplified output signal to
an external power amplifier, recording console, or
to the Aux In jack of another Crate powered mixer.
38. MAIN LEVEL: Use this control to adjust the overall
level of the signal at the Main Out Left / Right jacks
(#46) and the Speakers - Left / Right jacks (#48,
page 9).
48. MONITOR OUT: Use this jack to send a pre-ampli-
fied signal to an auxiliary monitor amplifier (or pow-
ered monitor).
39. BRIDGE/STEREO: Use this switch to determine
whether the main power amplifiers are bridged
together for a single output signal (at the up posi-
tion) or work separately for a stereo output signal
(at the down position).
Wiring for the DSP footswitch (#41):
7
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PM62S/PM82S/PM82T Powered Mixers
The Rear Panel:
48. SPEAKERS - LEFT / RIGHT: Stereo Mode
Only! (See #39, front panel master sec-
tion.) Use these jacks to connect the mixer
to your left and right main speakers. Observe
the four ohm minimum load rating and the
additional speaker information printed on the
rear of the mixer.
SPEAKERS
MAXIMUM OUTPUT 270 WATTS PER CHANNEL @ 4Ω
A and B:
16Ω LOAD / 8Ω MINIMUM
8Ω LOAD / 4Ω MINIMUM
16Ω LOAD / 8Ω MINIMUM
A or B:
BRIDGED:
B
A
B
A
A
49. SPEAKERS - BRIDGE: Bridge Mode
Only! (See #39, front panel master sec-
tion.) Use this jack to connect the mixer to
your main speakers. Observe the eight ohm
minimum load rating and the additional
speaker information printed on the rear of
the mixer.
48
49
48
RIGHT
BRIDGE
LEFT
B
• CLASS 2 WIRING •
POWER
51
50
50. SPEAKERS - MONITOR (PM82T only):
Use these jacks to connect the mixer to your
monitor speakers. Observe the four ohm
minimum load rating and the additional
speaker information printed on the rear of
the mixer.
ON
OFF
MONITOR
H
O
T
CAUTION:
DO NOT CONNECT TO A OR B
WHEN IN BRIDGED MODE.
100V 50/60Hz, 10A
120V 60Hz, 10A
230V 50Hz, 6.3A
240V 50Hz, 6.3A
“Class 2 Wiring” for all other terminals
provided the audio output power exceeds
10 W per channel under normal operating
conditions or the apparatus is intended to
be installed or interconnected in the field
by a skilled person.
52
WARNING:
THIS AMPLIFIER IS CAPABLE OF
PRODUCING SOUND PRESSURE LEVELS
IN EXCESS OF 110dB. CONTINUED
EXPOSURE TO HIGH SOUND PRESSURE
LEVELS CAN CAUSE PERMANENT
HEARING IMPAIRMENT OR LOSS. USER
CAUTION IS ADVISED AND EAR
51. POWER: Use this switch to turn the mixer
on (switch de-pressed) and off (switch in the
out position). The front panel Power LED
(#26) illuminates when the mixer is on.
PROTECTION IS RECOMMENDED WHEN
PLAYING AT HIGH VOLUMES. THE U.S.
GOVERNMENT HAS ESTABLISHED
ACCEPTABLE NOISE EXPOSURE LEVELS.
REFER TO THESE GUIDELINES FOR
ALLOWABLE EXPOSURE TIMES.
52. AC LINE CORD: The grounded power cord
should only be plugged into a grounded
power outlet that meets all applicable elec-
trical codes and is compatible with the volt-
age, power and frequency requirements
stated on the rear panel. Do not attempt to
defeat the safety ground connection!
8
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PM62S/PM82S/PM82T Powered Mixers
The DSP Section:
Use the DSP
Program control
(#23) to select
one of the six-
teen digital
effects - the
selected effect
illuminates on the
display panel.
(The effects are
only active when
the DSP On
switch - #22 - is
depressed.)
22
23
The chart below lists each of the sixteen digital effects by its Program number, its name (as indicated on the DSP display
panel), and a brief description of the effect:
PROGRAM #
NAME
DESCRIPTION
1
2
VOCAL 1
VOCAL 2
VOCAL 3
ECHO 1
ECHO 2
DELAY
slight chorus, short slapback delay, medium hall reverb
chorus with large hall reverb
doubler, short flange, large plate reverb
125 ms echo with long regeneration
250 ms echo with short regeneration
125 ms delay
3
4
5
6
7
SM HALL
MD HALL
LG HALL
CATHED
ROOM 1
ROOM 2
PLATE 1
PLATE 2
GATEREV
small hall reverb
8
medium hall reverb with early reflections
large hall reverb
9
10
11
12
13
14
15
large saturated reverb - similar to church/cathedral
small tight room reverb
medium room reverb
small plate reverb
large plate reverb
gated reverb (medium hall)
16
FLANGE
large deep flange, slow rate, low resonance
9
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PM62S/PM82S/PM82T Powered Mixers
System Block Diagram:
MONO CHANNELS:
PHANTOM
POWER
+48V
PAD
PEAK
MIC
MON
LOW MID HIGH
HIGH-Z
LINE
PAN
LEVEL
EFF
STEREO CHANNELS:
PHANTOM
POWER
+48V
PEAK
MON
MIC
HIGH-Z
LINE
LEFT
(MONO)
PAN
LEVEL
EFFECT
L
M
H
MON
HIGH-Z
LINE
RIGHT
PAN
LEVEL
LOW MID HIGH
EFFECT
AUX IN
AUX IN
LEVEL
LEFT
TAPE IN
LEFT
TAPE IN
LEVEL
AUX IN
RIGHT
AUX IN
LEVEL
TAPE IN
RIGHT
TAPE IN
LEVEL
1 0
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PM62S/PM82S/PM82T Powered Mixers
System Block Diagram (con’t):
SPEAKERS
A
SPEAKERS
B
LEFT
POWER
AMP
SPEAKERS
BRIDGE
BRIDGE
3
1
SPEAKERS
A
2
RIGHT
POWER
AMP
INV
STEREO
SPEAKERS
B
TAPE
OUT
LEFT
7-BAND
GRAPHIC
EQ
LIMITER/
LED
DISPLAY
MAIN
OUT
LEFT
MAIN
LEVEL
MAIN EFF
RETURN
LEVEL
HEAD-
PHONE
LEVEL
HEAD-
PHONES
LIMITER/
LED
DISPLAY
MAIN
OUT
RIGHT
7-BAND
GRAPHIC
EQ
MAIN
LEVEL
TAPE
OUT
RIGHT
MAIN EFF
RETURN
LEVEL
PROGRAM
INDICATOR
PEAK
ON
DSP
DSP FOOT-
SWITCH
PROGRAM
DSP LINE
OUT
DSP SEND
LEVEL
MONITOR
EFF RET
LEVEL
LIMITER/
LED
DISPLAY
7-BAND
GRAPHIC EQ
MONITOR
OUT
MONITOR
LEVEL
SPEAKERS
MONITOR A
MONITOR
POWER
AMP
SPEAKERS
MONITOR A
PM82T ONLY
11
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PM62S/PM82S/PM82T Powered Mixers
Technical Specifications
MAXIMUM VOLTAGE GAIN
(PAD OFF)
87dB Mic In to Power Amp Out Main 1, 2 and Monitor
59dB Mic In to Main Out, Monitor Out
64dB Mic In to Effect Out
47dB Mic In to Rec Out
47dB Line In to Main Out, Monitor Out
26dB Aux In to Main Out, Left (Mono), Right
17dB Stereo Left/Mono to Main
INPUT CHANNEL EQUALIZATION
FREQUENCY RESPONSE
15dB Maximum
High: 12kHz (shelving); Mid: 2kHz (peaking); Low: 80Hz (shelving)
+1/-3dB, 20Hz-20kHz @ 1W output into 8 ohms (Power Amp Out)
+1/-3dB, 20Hz-20kHz @ +4dB output into 10k ohms (Main Out, Monitor Out, Effects Send)
MAXIMUM OUTPUT POWER
TOTAL HARMONIC DISTORTION
PM62S, PM82S: 2 X 400W/4 ohms @ 0.5% THD @ 1kHz
PM82T: 3 X 270W/4 ohms @ 0.5% THD @ 1kHz
<0.3% @ 20Hz-20kHz, 100W output into 4 ohms (Power Amp Out)
<0.3% @ 20Hz-20kHz, +14dB output into 10k ohms (Main Out, Monitor Out, Effects Send)
HUM AND NOISE
-115dB equivalent input noise, -53dBv residual output noise
(Power Amp Out)
(Average, Rs=150Ω)
(with 20Hz-20kHz BPF)
-74dBv residual output noise (Main Out, Monitor Out, Effects Send)
-71dBv (75dB S/N) (Main Out, Monitor Out)
-67dBv (72dB S/N) (Main Out, Monitor Out)
-73dBv (77dB S/N) Effects Send
All channel Level controls at minimum
One channel Level control at maximum
All channel Level controls at minimum
One channel Level control at maximum
-62dBv (66dB S/N) Effects Send
CHANNEL CROSSTALK @ 1kHz
GRAPHIC EQUALIZER
< -90dB
+/-12dB @ 60Hz, 120Hz, 360Hz, 1kHz, 2.5kHz, 7kHz, 16kHz
16 programs
INTERNAL DIGITAL EFFECT
PHANTOM POWER
+48V is supplied to electrically balanced inputs for powering condenser microphones via 6.8kΩ current
limiting/isolating resistors
LIMITER LED ON
Output Level: +34dBv
DSP On/Off
1500W
FOOT SWITCH
POWER CONSUMPTION
SIZE AND WEIGHT
PM62S: 19” (483mm) W x 13” (330mm) H x 11” (279mm) D; 49 lbs (22kg)
PM82S: 21.25” (540mm) W x 13” (330mm) H x 11” (279mm) D; 51 lbs (23kg)
PM82T: 21.25” (540mm) W x 13” (330mm) H x 11” (279mm) D; 52 lbs (24kg)
Due to ongoing product development and improvement, the specifications contained herein are subject to change without notice.
©2004 SLM Electronics, Inc. • A Division of St. Louis Music, Inc.
1400 Ferguson Avenue • St. Louis, MO 63133
18-681-02 • 101304
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