Shure Computer Monitor P4M User Manual

P4M  
Four-Channel Personal Monitor Mixer  
2005, Shure Incorporated  
27D8707 (Rev. 4)  
Printed in U.S.A.  
 
ENGLISH  
INTRODUCTION  
Thank you for buying the Shure P4M Personal Monitor Mixer. The P4M is a half-rack, four channel monitor mixer designed for live performance use. Use it with  
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a Shure Personal Stereo Monitoring (PSM ) system, or in any other application appropriate for a versatile, compact mixer. When used with a PSM system, the  
P4M provides several enhancements to in-ear monitoring:  
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S
S
Consistency– same mix every night,  
Independence– monitor mixes created and controlled by the performer,  
Flexibility– provides monitor mixes regardless of a venue’s sound system capabilities.  
For information on any Shure PSM System, please refer to the appropriate user’s guide, available on the world wide web at www.shure.com.  
P4M MIXER FEATURES  
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1
P4M FRONT PANEL  
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3
4
6
7
P4M BACK PANEL  
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1. Input Jacks: Accommodate both XLR and 1/4” connectors at mic  
4. Mix Output Jacks: 1/4” TRS jacks provide the line level mix  
or line levels. They are electronically balanced.  
created with the Level/Pan knobs.  
2. Signal/Clip LEDs: Color indicates the signal status of the corre-  
5. AUX Inputs: Signals from the two 1/4” TRS input jacks are com-  
bined with the mix created by the Level/Pan knobs. Front panel  
settings do not affect these jacks.  
sponding Mic/Line Input:  
LED Color  
Green  
Signal Status  
Signal present  
6. DC IN Locking Connector: Plug the PS40 AC Adaptor into the  
top connector.  
Yellow  
Red  
Nominal Level  
Signal clipping  
7. DC OUT Locking Connector: Powers a P4T Transmitter or  
anotherP4M Mixer. A DC Jumper Cable is provided with the P4M.  
NOTE: A PS40 can only power two Shure devices.  
3. Concentric Level/Pan Knobs: The inner knob controls the input  
level; the outer ring pans the input signal between the 1/L and 2/R  
mix outputs.  
8. Split Outputs: Each male XLR output provides a duplicate of its  
correspondingmic/line input. Front panel settings have no effect  
on Split Outputs.  
Set Up  
Audio Sources  
P4M Back Panel  
P4M Front Panel  
To Audio Input  
of next device  
PS40  
AC Adaptor  
1. Plug the PS40 AC Adaptor into the mixer’s DC IN locking connector. Plug the other end into a wall socket.  
2. Connect the MIX OUTPUT jacks to the the audio input of the next device.  
3. Connect up to four audio sources (microphones, instruments, mixers) into the input jacks on the front panel.  
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ENGLISH  
USING THE P4M PERSONAL MONITOR MIXER  
Pans between  
Mix Out channels  
DIRECT BOX  
AUDIO  
INPUT 3  
AUDIO  
INPUT 2  
2/R  
(+)  
1/L  
AUDIO  
INPUT 4  
AUDIO  
INPUT 1  
Adjust levels to  
Mix Outs  
(–)  
AUX IN  
1/L  
MIX OUT  
1/L  
AUX IN  
2/R  
MIX OUT  
2/R  
Audio signal path for the P4M  
Mixer  
SUM  
SUM  
SPLIT OUTS  
SPLIT  
OUTPUT 4  
SPLIT  
OUTPUT 1  
MIX  
OUT 2  
SPLIT  
OUTPUT 3  
MIX  
OUT 1  
AUX IN  
1/L  
SPLIT  
OUTPUT 2  
AUX IN  
2/R  
PAN  
LEV  
LEV  
LEV  
LEV  
PAN  
PAN  
PAN  
MIC/LINE INPUTS  
Once the basic set up is complete, use the P4M Personal Monitor Mixer to create a custom mix:  
1. Mix the signal from each audio input using the corresponding CONCENTRIC LEVEL/PAN knobs:  
OUTER RING: Use this to pan the signal to the left or right channel of the stereo mix.  
INNER KNOB: Use this to control the level of the audio input.  
2. Observe the signal/clip LEDs next to each CONCENTRIC LEVEL/PAN knob.  
NOTE: Decrease the level of an input if the corresponding signal/clip LED is consistently red. If the level is decreased  
all the way and the LED remains red, the level of the input from the previous device in the audio chain is too high and  
should be decreased.  
3. Up to two additional line-level audio sources (such as other mixers, a click track or a digital sequencer) may be added  
via the AUX IN inputs. These signals go directly to the MIX OUT outputs and are not affected by the CONCENTRIC  
LEVEL/PAN knobs.  
4. To pass an unaltered signal through the P4M, use the corresponding SPLIT OUTPUT.  
NOTE: Although the P4M does not provide phantom power for condenser microphones, the SPLIT OUTPUTS can  
pass phantom power from a phantom power supply to a microphone connected to the corresponding input jack.  
CAUTION!: Use a “direct box” when connecting guitars, keyboards, and other instruments to a mixing console  
through the P4M Mixer. The phantom power that mixing consoles provide for microphones can damage other  
instruments. Connect the instrument to the direct box then connect the direct box to the P4M Mixer input.  
APPLICATIONS  
The flexible design of the P4M Mixer allows it to be used in many different applications. The following examples introduce principles  
which will allow you to develop personalized setups for your specific application.  
APPLICATION ONE: One P4M Mixer to One Audio Device  
Connect a P4M to  
audio equipment such as:  
a PSM Transmitter,  
–OR–  
MIX  
OUTPUTS  
P4M  
a PSM Hardwired Bodypack  
Personal Monitor Mixer  
INPUTS 1–4  
–OR–  
LEVEL/PAN  
KNOBS 1–4  
a Floor Monitor Amplifier.  
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ENGLISH  
This is the basic configuration of the P4M Mixer, and is recommended for small ensembles in rehearsal or performance situations:  
1. Connect up to four microphones, instruments or audio devices to inputs 1–4 on the front panel of the P4M.  
2. Mix the four signals using the LEVEL/PAN knobs adjacent to the inputs.  
3. Connect the MIX 1/L OUTPUT and MIX 2/R OUTPUT on the back panel of the P4M to an appropriate piece of audio equipment.  
APPLICATION TWO: Multiple P4M Personal Monitor Mixers to One Audio Device  
MIX  
OUTPUTS  
To Next P4M Mixer, or a PSM Transmitter,  
PSM Hardwired Bodypack or Amplifier.  
AUX  
INPUTS  
MIX  
OUTPUTS  
P4M  
P4M  
Personal Monitor Mixer  
INPUTS 1–4  
Personal Monitor Mixer  
INPUTS 1–4  
LEVEL/PAN  
KNOBS 1–4  
This application, using the P4M’s AUX Inputs, allows more than four inputs to be mixed, and is recommended for larger ensembles in live or rehearsal situations:  
1. Connect up to four audio sources into the front panel inputs of a P4M.  
2. Mix these signals using the corresponding LEVEL/PAN knobs on the P4M.  
3. Connect the MIX OUT outputs of the first P4M to the AUX IN inputs of a second P4M.  
4. Connect up to four more audio sources into the front panel inputs of the second P4M Mixer.  
5. Mix these signals using the corresponding LEVEL/PAN knobs on the second P4M.  
6. Connect the MIX OUT outputs of the second P4M to an appropriate piece of audio equipment.  
NOTE: If more than eight inputs are required, connect additional P4M Mixers after the second P4M, using the connection described in step 3  
above.  
APPLICATION THREE: Multiple P4M Personal Monitor Mixers to Multiple Audio Devices  
To Next P4M or Amplifier  
To Mixing Console  
To Transmitter,  
Other Audio  
Sources  
Bodypack or Amplifier  
P4M  
Personal Monitor Mixer  
Shared Mic/Line Signal  
Monitor Mix  
To Mixing Console  
Mixing  
Console  
To Transmitter,  
Bodypack or Amplifier  
Split  
Outputs 1-4  
Mix  
Outputs  
P4M  
Personal Monitor Mixer  
Inputs 1–4  
Monitor Mix  
Level/Pan  
Knobs 1–4  
This configuration, using the P4M’s SPLIT OUTPUTS, allows each player to hear a custom mix created at their own P4M Personal Monitor Mixer, and is recom-  
mended for live, studio or rehearsal situations:  
1. Connect a monitor mix (from a mixing console) and up to three microphones or instruments to the four inputs on the P4M  
Mixer front panel.  
2. Connect the P4M SPLIT OUTPUTS containing the monitor mix to an input on a second P4M.  
3. Connect the other SPLIT OUTPUTS from the first P4M to either the second P4M or to the mixing console.  
4. On the second P4M, connect the SPLIT OUTPUT containing the monitor mix to a third P4M or to a floor monitor amplifier.  
The other SPLIT OUTPUTS may be connected to a third P4M or to the mixing console.  
5. Connect MIX OUT 1/L and MIX OUT 2/R on the back panel of each P4M to an audio device such as a P4T Transmitter, PSM  
Hardwired Bodypack or a floor monitor amplifier.  
6. On each P4M, mix the four signals using the LEVEL/PAN knobs on the front panel.  
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ENGLISH  
APPLICATION FOUR: One P4M Personal Monitor Mixer to Two PSM Transmitters/Receivers  
Monitor Mix  
Other Audio  
Sources  
Mix 2/R  
To Mixing  
Console  
Line  
Inputs Outputs  
LOOP  
PSM  
RECEIVER  
PSM  
Mixing  
Console  
Transmitter  
Mix 1/L  
RF Transmission  
Mix  
Outputs  
Split  
Outputs  
Line  
PSM  
Inputs  
RECEIVER  
P4M  
Personal Monitor Mixer  
Inputs 1–4  
PSM  
Transmitter  
RF Reception  
Level/Pan  
Knobs 1–4  
Monitor Mix  
This configuration, using the P4M’s SPLIT OUTPUT and a PSM transmitter’s LOOP OUTPUT, allows one P4M to provide custom mixes to two PSM transmitters,  
and is recommended for small ensembles in live performance:  
1. Connect up to four microphones or instruments into the P4M inputs. Connect the SPLIT OUTPUTS to a mixing console.  
2. Connect a monitor mix from a mixing console to the first PSM transmitter (P4T transmitter shown).  
3. On the first PSM transmitter, connect the LOOP output containing the monitor mix to an input on the second PSM transmitter  
(See appropriate PSM System User’s Guide for details).  
4. Connect a MIX OUT output to each transmitters’ remaining input. Use the front-panel PAN knobs to balance input signals  
between the two transmitters.  
5. Place the PSM receivers in MixMode (see appropriate PSM System User’s Guide). Use the balance wheel on the PSM  
receiver to blend the monitor mix with the custom mix created by the P4M.  
RACK MOUNTING THE P4M PERSONAL MONITOR MIXER  
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The P4M features a / -rack chassis specially designed for sturdiness. This eliminates the sagging and bending found in most  
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1
/ -rack designs — the brackets and straddle bars ensure that the units will be installed securely.  
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WARNING: Do not torque the screws too tightly, or the chassis may be damaged.  
Single Unit  
Dual-Mounted Units  
NOTE: Be sure to use both straddle bars when installing dual units.  
Mounting in an Equipment Rack  
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ENGLISH  
Specifications  
MeasurementConditions (unless otherwise specified): full gain; 1 kHz, one channel activated; source impedances: Mic 150 , Aux Level 150 ; termina-  
tions: Line 600 .  
Frequency Response (Ref 1 kHz, controls centered)  
20 Hz to 20 kHz ± 2 dB  
INPUT Specifications  
Input  
1–4 (front panel)  
Aux In  
Gain (Maximum)  
43 dB  
0 dB  
Impedance (at 1kHz)  
5800 Ω  
18 k(each)  
9100 (1/L mono)  
Input Clipping Level  
Crosstalk  
+12dBV  
-100 dB  
> 75 dB  
+12 dBV  
-90 dB  
Common Mode Rejection  
> 70 dB  
OUTPUT Specifications  
Output  
Split 1–4  
Mix Out  
Impedance  
N/A  
500 (unbalanced)  
1k(balanced)  
Output Clipping Level  
Noise (100 Hz to 22 kHz)  
N/A  
+5 dBV (10 kbalanced  
load, -30 dBV input ch. 1–4.)  
-110 dBV  
-100 dBV (all controls CCW)  
-62 dBV (all controls CW)  
Distortion (THD) at 1kHz)  
Crosstalk  
.0005%  
-100 dB  
< .05% (0 dBV output)  
-70 dB  
LEDs: Resultant Mix Out Level  
Green: -30 dBV  
Phantom Power  
The P4M does not produce phantom power, but phantom power is allowed  
to pass through Split Outputs 1–4 to inputs1–4 respectively.  
Audio Polarity  
Yellow: -10 dBV  
Red: 0 dBV  
All outputs in polarity with all inputs.  
Current  
XLR Pin 2 is “hot” with respect to Pin 3; Pin 1 is ground.  
120 mA max.  
1/4” TRS tip is “hot” with respect to ring; sleeve is ground.  
Temperature Range  
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . -7° to 49° C (20° to 120° F)  
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . -29° to 74° C (-20° to 165° F)  
Overall Dimensions  
44 mm H x 218 mm W x 162 mm D  
(1.72 x 8.60 x 6.37 inches)  
Net Weight  
Power Requirements  
Operating voltage 14–18 Vdc  
SuppSlied with one of the following external power supplies:  
Model PS40: 120 Vac, 60 Hz input  
S
Model PS40E, Model PS40UK: 230 Vac, 50/60 Hz input  
NOTE: Courtesy DC connector is protected from short by a self–resetting  
“Polyfuse”. Maximum recommended load is 250mA. (2 P4Ms or 1 P4T.)  
1.20 Kg (2 lbs, 10 oz)  
Certification  
PS40: Conforms to applicable U.S. and Canadian electrical and safety  
P4M: Eligible to bear CE marking:  
. Conforms to European Union EMC  
standards.  
directive 89/336/EEC. Meets applicable tests and performance criteria in  
EuropeanStandard EN 55103 (1996) parts 1 and 2, for residential (E1)  
and light industirial (E2) environments.  
PS40E/PS40UK: Conforms to European low voltage directive 72/23/EEC. Eli-  
gible to bear CE marking.  
Furnished Accessories  
Single Mount Rack Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53A8484  
Dual Mount Rack Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53B8484  
Straddle Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53A8443  
AC Adaptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PS40 (120V), PS40E (230V), PS40UK (230V)  
DC Jumper Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95A8420  
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SHURE Incorporated http://www.shure.com  
United States, Canada, Latin America, Caribbean:  
5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.  
Phone: 847-600-2000 U.S. Fax: 847-600-1212 Intl Fax: 847-600-6446  
Europe, Middle East, Africa:  
Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414  
Asia, Pacific:  
Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055  
 

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