Mpm-81 specifications – Oxmoor MPM-81 User Manual
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MPM-81 SPECIFICATIONS
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*SMPTE Method; 60 Hz + 7 kHz mixed 4:1. ** Input terminated w/600 ohms, unity gain, adjacent channel driven to +4 dBm output.
Specifications subject to change without notice.
FREQUENCY RESPONSE
20 Hz to 20 kHz ......................................................... +0, -0.3 dB (Ref. +4 dBu)
HUM AND NOISE
Ref. +4 dB, Input Terminated With 150 ohms,
Output @ Unity Gain (20 Hz to 20 kHz, Unweighted)
Line Input, Direct Output ......................................... -93 dBu
Microphone Input, Direct Output ............................ -85 dBu
Line Input, Mix Output .............................................. -84 dBu
Microphone Input, Mix Output ................................. -80 dBu
DISTORTION
THD + Noise and IMD*, Ref. 0 dB, Output @ Unity Gain
Line Input, Direct Output ......................................... .01%
Microphone Input, Direct Output ............................ .01%
Line Input, Mix Output .............................................. .035%
Microphone Input, Mix Output ................................. .035%
OFF ISOLATION
Line Input Ref. 0 dBu ................................................ 80 dB
Microphone Input Ref. -40 dBu ............................... 80 dB
CROSSTALK
Unity Gain, Ref. +4 dB output
Channel to Channel ................................................... -80 dB (20 Hz to 20 kHz)
MIC/LINE INPUTS
Type .............................................................................. Electronically Balanced (RF Suppressed)
Connectors .................................................................... Cage Clamps with Mating Connector
Input Impedance ............................................................ 10 K Ohms
Line Input Sensitivity ...................................................... Typical +4 dBu, Maximum +18 dBu
Microphone Input Sensitivity .......................................... Typical -40 dBu, Maximum -22 dBu
Mic/Line Switch ............................................................. Sets Input for Microphone or Line-Level Source
Mic/Line Trim Control Range .........................................
± 15 dB (Ref. 0 dBu Output)
PROGRAM OUTPUTS
Type .............................................................................. Electronically Balanced (RF Suppressed)
Connectors .................................................................... Cage Clamps with Mating Connector
Source Impedance ......................................................... 150 Ohms (75 Ohms/Side)
Recommended Load Impedance .................................... 600 Ohms or Greater
Maximum Output Level .................................................. Ref. 1 kHz @ Rated THD
Terminated w/600 Ohms ............................................ +24 dBm (All Outputs Driven Simultaneously)
Unterminated ............................................................... +26 dBu
TONE CONTROLS
Hi-Frequency ............................................................... 8 KHz,
±12 boost/cut
Low-Frequency ........................................................... 150 Hz,
±12 boost/cut
DUCK ATTENUATION
Fixed ............................................................................. -80 dBu
CONTROL PORT
Connector .................................................................... 25-pin D-sub, Female
VCA Control ................................................................... +15 VDC “OFF” to 0 VDC “Full ON”
Slope ............................................................................. 1 dB/65 mV
MIX CONTROL
Connectors .................................................................. Cage Clamps with Mating Connector
Logic Action ................................................................... Maintained Closure to Common
Logic Levels ................................................................... Low < .8 Volts, High > 2.4 Volts
Maximum Sink Current .................................................. 1 mA
Maximum Cable Length ................................................. 600 m (2000 ft.), #22 AWG
Switching Time .............................................................. 50 ms
MAINS POWER
Power Requirements ................................................. 100 to 125 VAC or 200 to 230 VAC, 50/60 Hz
MECHANICAL
Overall Dimensions .................................................... 44mm H x 482mm W x 254mm D
(1.72” H x 19” W x 10” D)
Finish ............................................................................. Textured Black Paint
Weight ........................................................................... Shipping: 6.3 Kg (14 lb.)
Net: 5.9 Kg (13 lb.)