MTX Audio RT2600 Repair

[@BillyWillicker]

A great Pleitz design. Full N-channel A/B MOSFET design for the audio section. This allows near perfectly symmetric current capacity through to both rails. Also has a smart transformer coupled SMPS drive circuit and very efficient power transformer. With 90A fusing, it's actually good enough of a design to put out 600W continuous audio power with nearly double that in peak output.

[@kirbyyasha]

Awesome fix! Gotta love the simpler fixes hahaha

[@JasonWW2000]

It looks like MTX precisely cut those fan frames in order to contour the air flow through the amp. That might be one of the reasons these amps are still functioning fine after all these years.

[@nickwallette6201]

"tripping the power supply" -- haha yeah, I remember trying to power an 12v amp from a little lab supply I had back in the early 2000s. It would do ... alright ... as long as I had the highpass filter on. But those high power car audio amps are like "gimme 12v at all the amps." Their input impedance is a short circuit. haha

[@JasonWW2000]

What the heck is going on with those big stickers on the back? The second amplifier looks to have everything in the proper place. The first amplifier has the black sticker too far to the right and going over the top of the serial number sticker. Lol

[@kennethmartin7853]

At 11:42 the 3 output capacitors look buldged on top. It's just a matter of time those will go.

[@kennethmartin7853]

I repaired one of these today the big power caps were bad. 5600 uf 50v I believe