Microphone Preamplifier, Mic to Line Level Convertor

LMPRE - Microphone Preamplifier, Mic to Line Level Convertor

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Product Information

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Product Overview

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.
  • 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
  • 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
  • Equivalent Input Noise -115 dBV
  • Total Gain 70 dB; 83 dB w
  • Gain of Microphone Preamp 10 to 49 dB
  • Gain of Master Volume +
  • 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

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