I bought them from Mouser. I bought 10, so I will crack one open tomorrow and see what I can see.

Thanks for finding and posting the pic.

Jacampb2, I used the Vishay IRF540PBF. I swapped the FETs from one channel to the other and the bias issue followed the new FETs. Yea, the +/- 15 V rails came down to ~ +/- 16.3 Vdc when the pre-amp board was connected. I have changed all of the mpsa56s and mpsa06s as well as the differential pair o...

So I changed both output FETS on the bad channel, found a few resistors that were toast or out of spec and changed them. Found three capacitors that were out of spec and or bulging changed them. The amp will now play on both channels and things seem to be relatively even on both channel speaker outp...

Hello, I am starting a repair on an xs2300 blk that has several problems, as well as previous repairs that were questionable at best. Does any one have any wiring diagrams for this model? they aren't going to give you them, even if they had one. best to do is post pics and ask targeted questions. S...

Hello, I am starting a repair on an xs2300 blk that has several problems, as well as previous repairs that were questionable at best.


Does any one have any wiring diagrams for this model?