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Dual Microphone Preamplifier - Stereo Output with Compressors

Radio Design Labs regular price - $ 289.95

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The EZ-MPA-2 is a microphone preamplifier with front-panel volume control and audio level metering. A front-panel switch engages an audio compressor to control overloads and clipping during high level audio bursts or peaks from the microphone. Dynamic or condenser microphones are both supported with rear-panel switchable phantom voltage. The preamplified mic signal feeds both channels of the line output on RCA or MINI jacks. Left and Right LED VU metering facilitates easy level adjustment. The EZ-MPA2 is ideal to add microphone inputs to mixers and amplifiers with line inputs. It is used in houses of worship, restaurants, clubs, meeting rooms, educational facilities, conference rooms, studios and commercial sound systems.


  • Left and Right Balanced XLR Microphone Inputs
  • Switch-Selectable Phantom on Rear Panel
  • Unbalanced Output on MINI or RCA Jacks
  • Input and Output Connections on Rear Panel
  • Front-Panel Compressor Enable/Disable Switch
  • Audio Compressors Control Overloads
  • Front-Panel LEVEL Control for Each Channel
  • Dual-LED VU Meter for Each Channel


  • Optimized for Dynamic or Condenser Mics
  • Headroom Accomodates High Input Levels
  • Headroom Increases with Lower Gain Settings
  • Compressor Limits Clipping Over Wide Dynamic Range


Input (2):                                                        1.2 kΩ balanced on XLR jack, mic-level, -11 dBu max.

Level control (2):                                             Off to 50 dB gain

Outputs (2):                                                   -10 dBV nominal on RCA jacks or Mini jack,
                                                                     +16 dBV max. without compression,
                                                                     -4 dBV max. with 20 dB compression

Frequency Response:                                   80 Hz to 40 kHz (±1 dB, mic input,
                                                                     -6 dB at 20 Hz with integral high-pass filter)

THD+N:                                                         < 0.1% (35 Hz to 20 kHz, -50 dBu input)

Compression:                                                20 dB range, switch-selectable

CMRR:                                                           > 55 dB (20 to 20 kHz)

Metering:                                                        Dual-LED VU Meter, calibrated to -10 dBV output

Phantom:                                                       Switch-selectable 24 V (IEC 61938: 2013)

Noise:                                                            < -65 dB (below -10 dBV output, -50 dBu input)

24 Vdc power supply current:                        55 mA (idle), 80 mA (max.), 100 mA (max. with phantom)

Case dimensions:                                          5.75” (14.6 cm)W x 3” (7.6 cm)D

Mounting size:                                               1/3 rack width

Package Type:                                              Cardboard Box

Package Dimensions:                                   9.5 x 7 x 2.25 in.

Shipping Weight:                                           0.955 lbs.

WEEE weight:                                                0.56 lbs.

Tariff code:                                                     8518.40.2000

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