Hi, I found your thread (Recapping, Rebuilding, Restoring, Rest-o-modding... a Pioneer SX-450 receiver). I have a question about the BOM you included in post #30. In post #32 you give a list of all the transistors you replaced. But in the BOM you only mention 2 x 4 transistors. Should I also replace the others you mentioned in #32?
Good luck!