improving thd

Hi, Before I reassembled those powered speakers after repairing one of them, I tried some so simple mod to improve THD of each amp section. This can be applied to a lot of amps, when they cheap out a bit on capacitors in the power section… To prove my point, I ‘ll run a similar mod and video...

A little video on a simple significant THD improvement on a Rotel RA 840 BX 4 ! Brings the amp to newer THD standard from its original -70 db to -81db. It also cures the overheating of one channel versus another, on this older generation amplifier, I touch also briefly on why this amps fail in...