Crate Amplifiers Musical Instrument PM62S User Manual

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.  
 
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
 
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
 
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
 
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
 
PM62S/PM82S/PM82T Powered Mixers  
The Master Section (cont):  
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
 
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
 
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
 
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  
 
PM62S/PM82S/PM82T Powered Mixers  
System Block Diagram (cont):  
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  
 
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=150)  
(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 6.8kcurrent  
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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