HISTORY:
My previous business for 25+ years was audio post production but as a side-line we had a quantity of equipment designated as "loaners" for up and coming bands/artists who had either struck misfortune (like some "low life" stealing their gear at a gig) or their existing equipment had simply failed on them, usually at the worst possible moment!
These spare parts come from our Behringer MX 2004A multi-track audio mixer, the equipment has been rechecked immediately prior to dismantling and everything is working great BUT it had some cosmetic issues so I have decided to part out the equipment instead of offering as a complete unit.
Also the original power supply went missing so I had to test this 'desk' with a custom test supply I have here.
HINT: DO NOT PAY THE CRAZY PRICES ELSEWHERE ONLINE FOR THE POWER SUPPLIES!!! $80 for just the AC power pack is just a total ripoff. You can get one of these power supplies made up from components costing around $20
These mixers require a DUAL AC supply (not that easy to find, that's why the asking prices are so high) 19V a side or 38V AC centre tapped.
This is pretty much an approximation of the voltage because the Power Supply PCB inside is marked as 20V - 0V - 20V AC so if you get close to the 19V ~ 20V mark then you will be fine - current requirements are very minimal, nothing grunty needed here.
Love them or hate them (and some do!), here is some Behringer MX 2004A spare parts ...
Behringer Audio Mixer (SPARE PART)
Model: MX 2004A
Part # MX2004-A/03
INTERNAL Power Supply Board
This is NOT the external power supply, you still need to have that power pack to power up the MX 2004A
36 ~ 40V AC (centre tapped) input to the board
15-0-15V DC Regulated output
48V Regulated output (phantom power source)
Supplied complete with base heatsink
CONDITION (of all knobs):
No cracks
No damage to the bottom slot
Clean and unmarked
TESTING:
Before dismantling the 2004A, I checked every input channel and the outputs. I made sure the VU meter display and all LED's indicated - everything was fine, no issues at all.
Measured DC outputs from this board were spot on.
NOTE: I have cut the wires (blue) which went to the "Phantom Power" On-Off switch (it had to be done in order to remove the switch from the chassis) AND the AC input leads have been de-soldered from this board (3x brown colour coded) but it is easy to locate where the LV AC is connected, the board is screen printed with these details. The 7 way DC output connector does NOT have the plug included, that comes with the very large mainboard advertised separately.
I have re-applied fresh silicon grease to the rear of each regulator, over time these can become old/brittle and pretty useless in providing a heat path to the heatsink.
Nice low voltage power module to replace a faulty MX 2004A power board OR perfectly fine to use in other commerical equipment or a custom piece of equipment that requires these voltage rails.
