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A Designs MP-2A:

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The A Designs MP-2A or MP2A tube mic preamp is a vacuum tube in and out two channel microphone preamplifier with selectable tone switches, CineMag tranformers, backlit VU meters, and a -20db pad. The MP-2A is based on the celebrated MP-2 from A-Designs Audio.

The "A" series has many modifications incorporated from the original MP Series. Some of the features include a -20dB Pad Switch and selectable tone switches allowing you to create 4 different tones per channel. Also, the output gain of the MP-2A is 60 dB! Perfect for the new generation of ribbon microphones.

Utilizing world class input transformers by CineMag and custom designed output transformers for the lowest noise level and highest quality sound, the MP-2A brings the warmth and richness of analog to your recordings while maintaining a crystal clear spectrum of sound. The MP-2 is a professional preamp for use on a variety of sources, and includes rear panel instrument and front panel line level inputs.

The MP-2A delivers warmth, transparency, and a quality sound with a clean and airy high end like only a high quality all-tube mic preamp can.


  • Vacuum-tube design
  • Two (2) Level Volume Controls
  • Two (2) Polarity Switches
  • Two (2) Tone Switches
  • Two (2) Phantom Switch
  • Two (2) Backlit True VU Meters
  • Red Jewel Lamp On/Off
  • Two (2) Neutrik Combo XLR 1/4" Input Connectors
  • Two (2) XLR Output Connectors
  • Zero Feedback Loop
  • Two (2) U-Rack Space
  • Two (2) CineMag Input Transformers
  • Two (2) Custom Wound Output Transformers
  • Two (2) 6NI-P Tubes
  • Two (2) EF86 Tubes
  • Clean and airy high end
  • Warmth, transparency, and quality sound

Technical Specifications:

Input Impedance: 1.4k Ohm
Gain Range: 60dB
Noise (EIN): -128
Mic Phantom Switchable 48 Volt Power Source
Mic Input Phase Switchable 0-180
Instrument Jack Input: 1/4 phono
Input Impedance: Min > 100k Ohm
Output: Balanced XLR
Output Impedance: 600 Ohm Switchable to 10k
Maximum Level: +22 dBu
Output: Low-Z, transformer-balanced
Frequency Response: 20 Hz - 60k Hz
Distortion THD: > .08 @ 1 Khz
Power Requirements: 100/120/230 VAC - 42 Watts
Dimensions: (W x H x D) 19" x 3.5" x 10"
Weight: 18 lbs. 8.16kg (Shipping weight 20 lbs.)

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