P4M
Four-Channel Personal Monitor Mixer
2005, Shure Incorporated
27D8707 (Rev. 4)
Printed in U.S.A.
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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
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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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P4M FRONT PANEL
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3
4
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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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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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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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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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/ -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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Specifications
MeasurementConditions (unless otherwise specified): full gain; 1 kHz, one channel activated; source impedances: Mic 150 Ω, Aux Level 150 Ω; termina-
tions: Line 600 Ω.
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 kΩ (each)
9100 Ω (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 Ω (unbalanced)
1kΩ (balanced)
Output Clipping Level
Noise (100 Hz to 22 kHz)
N/A
+5 dBV (10 kΩbalanced
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
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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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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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