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MDA Board

Replacement boards for Randall AMPS RM50, RM100, RM22 and RM20 will turn your amp into whole new dimension. Designed for easy and fast change, by user.
(MDA = Move Da Air)

Sometimes the Randall power amp seems to be too "sterille" or "Stiff".

Changed board adds clarity and missing midrange. Sound is fullbodied, more present, more "in your face". Much better pronounced in mix. The board even has one more gadget for tweakers: If the change in sound is too big for your taste, you can plug small jumper into special small connector, you can see it by side of CN1. Then this mod sound like MIX between stock Randall and new mode. Jumper is supplied with board too.

With Density knob in normal (PUSH) position it is stock Randall as we know it. When you pull Density pot, the Density function is disabled. Power amp now sounds quite different with fuller and strong body, more push, better pronounced in band situation or mix!

Videos which serves as tutorial for exchange: Video PART #1   Video PART #2

MDA board changes response and damping factor of power amp in RM100, RM50, RM22 or RM20.

  • Replacement is very easy and quick
  • You still have stock Randall mode (push pull in standard position) as well as new "modern" mode with push pull in PULL position


MDA Board for Randall RM100: 50$ + shipping
MDA Board for Randall RM50: 55$ + shipping
MDA Board for Randall RM22: 50$ + shipping
MDA Board for Randall RM20: 50$ + shipping

Shipping worldwide is 25$
When shipped with module: shipping FREE
Price excl. VAT

BUY / ORDER (via e-mail)