MCM Electronics

Microphone Preamplifier, Mic to Line Level Convertor By Whirlwind (LMPRE) MCM Part #555-29210

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Microphone Preamplifier

The Whirlwind LMPRE is a convenient single channel microphone preamplifier with tone controls and a built in peak limiter. Use it anywhere mic level to line level conversion is required. Common applications include adding a microphone to consumer audio receivers, feeding line level inputs of any professional audio processor or directly into a power amp, distribution amplifier or powered speaker system.

Specifications Top

Features
  • Two place tone controls to enhance the intelligibility of voice applications
  • Phantom power (24VDC) supplied for condenser microphones
  • Peak limiter protects audio systems from signal overload and distortion
  • Level metering and Limit Threshold LEDS
  • Balanced male XLR and dual mono RCA output connections
Specifications
  • Freq. Response at 50 dB gain (Not limiting): ± 1 dBv 20-10 kHz; -2.5 dB at 20 kHz
  • Freq. Response at 40 dB gain (Limiting): ± 1 dBv 20-20 kHz
  • THD + N at 50 dB gain (Not limiting): ± .1% 20-20 kHz
  • THD + noise at 40 dB gain (Limiting): ± .1% 100-20 kHz; ± 1.5% 20 – 50 Hz
  • THD + noise in limiting: At Threshold < 0.05%;In Limiting <0.11%
  • Equivalent Input Noise -115 dBV
  • Total Gain 70 dB; 83 dB w/ Bass and Treble at Max.
  • Gain of Microphone Preamp 10 to 49 dB
  • Gain of Master Volume +/- 15 dB
  • Range of level pot Input Gain: 38.6 dB; Output Level 29.8 dB
  • Common Mode Rejection of Input 80 dB at 60 Hz
  • Maximum Input level +4 dBV
  • Input Impedance 20 kOhm differential
  • Maximum output level +23 dBV
  • Output Impedance XLR 95 Ohms; RCA 1.6 kOhm
  • Noise at unity gain -104 dBV
  • Phantom Power Yes, 23.7 VDC
  • Power consumption Typically 62 mA @ 24 VDC
  • Power requirements 24V 200 mA, unregulated; 2.1mm-center positive
  • Internal Mains fuse Automatic reset internal fuse; 100 mA
  • Size 1.6 H x 5.7 W x 2.8 D inches
  • Unit Weight 0.7 lbs, 1.1lbs w/ Power Supply
  • Shipping Weight 1.25 lbs

Part Numbers
MCM Part #:555-29210
Whirlwind Part #:LMPRE
Package Specifications & Dimensions
Weight:1.1875 lbs.
Hazardous:No
RoHS Comp:No
Warranty:730 days
Need to Return?
Length:3.75 in.
Width:9 in.
Height:2.75 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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