Avedis Audio Electronics MA5 Microphone Pre

Class A tranformer-balanced mic preamp for 500 Series
Avedis Audio Electronics MA5 Microphone Pre
Avedis Audio Electronics MA5 Microphone Pre Avedis Audio Electronics MA5 Microphone Pre
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After some requests from audio engineers, the Avedis Audio MA5 was created for the need of a high quality microphone preamplifier in the characteristic sound of early 70s British consoles.  The re-engineering in the creation of the MA5 stemmed from years of experience restoring both American and British modules, deeply rooted in classic transformer-balanced, discrete electronics.  Only the best and most suitable components are used throughout, regardless of cost, to attain the best sound.

Much time was spent on the MA5, not only on the engineering side of the design, but also to extensive sound evaluations in observation of specific settings, gain structures, and key components spanning a time frame of a little over a year.

We have always believed that even with some of the best audio test analyzers we own and use, our ears' sensitivity, coupled with good judgment of sound through experience, is still unparalleled.  In the end, it is our ears we are trying to satisfy.


  • Standard 500 series modular size 1.5" x 5.25"
  • Single-ended Class A amplifier
  • UK made input transformer
  • Custom designed Jensen output transformer
  • Stepped gain rotary switch in 5dB steps
  • Output level pot for trim and mute
  • LED lit push-buttons
  • Special 28kHz button
  • Custom made Marconi style knobs
  • High headroom & CMR, Low noise design
  • 140ma current draw total, 70ma per rail

Additional Information

Condition New
Channels Single-Channel
Chassis 500 Series
Module Slot Count 1 Slot
Direct Input No
Digital I/O No
Happy Accident for my Grand Piano

I recently picked up a second 500 series rack and a couple modules I’ve had my eye on for awhile. I had a little left over in my budget so I decided to roll the dice on a preamp I’ve never heard before and was on sale at VK.com. I read up a bit on the MA5 and found a lot of people use it for a variety of instruments, it tends to be pretty transparent sounding so really good for something that doesn’t need any extra color. I do a lot of piano recording at my studio on my Baldwin Baby Grand, I typically use two mics inside the piano and one microphone close to the rear of the piano as a room mic. I ran the room mic through the MA5 the first session I had it hooked up, right off the bat it had more clarity and presence in the higher frequencies than any of my other preamps. I was so impressed how it sounded on the room mic I ended up buying another one to use for the two inside microphones. The MA5 had the same effect on the inside piano mics as well, I was thrilled with the tone I ended up buying a third MA5 and won’t be looking back anytime soon for any other preamps on my Piano.

By STK on May 9, 2017

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