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MI-3111 - Preamplifier
The MI-3111 preamplifier is for use with a 1/2 inch microphone, featuring constant current power and a BNC connector.

  • Constant Current Operation
Applicable Microphone MI-1233 / MI-1234 / MI-1235 / MI-1431 / MI-1432 / MI-1433
Frequency Bandwidth 10 Hz to 20 kHz
Gain -2 dB ± 1 dB (At 1 kHz)
Input Impedance Approximately 5 G Ohm
Intrinsic Noise 22.3 µVrms Maximum (Flat Weighting)
Distortion 1% Maximum
Operating Temperature Range -10 to +50ºC
Operating Humidity Range 30 to 90% Relative Humidity (With No Condensation)
Power Supply Required 15 to 25 V / 0.5 to 5 mA
Outer Dimensions 12.7 mm x 61 mm
Weight 30 g


Standard Accessories: One MI-0301 Preamplifier Holder.
$430.00 Add to Cart