I have three Yamaha P2200 and one of them is in need of all new output transistors. I bought it after he owner had it fixed by replacing only two transistors. You guessed it. It worked for while and it burned the others, in cascade. No biggie. It has 6 transistors per side, plus 2 on each DC board. Which are the most reliable replacement these days?
I don't want to perform an upgrade. Just fix to as new.