I have a ShoBud D15 on my bench I've replaced all the caps and xsistors including the predrivers and drivers and final outputs. The predrivers were matched pairs which when ordering parts , I didn't think to ask Digi-Key for a matched pair. But after I installed all the parts, the amp turns on but i have a 10 volt DC offset on the speaker leads. There is not much info on these amps and the schematic is very hard to read. On some of the parts I had to reconfigure them into the board. Like if a BJT is EBC on the board the parts I recieved were CBE instead of EBC so I had to turn them around 180 degrease to get them in and some of the others I had to turn them 90 degrease. The leads were hard to match up. If anyone has a service manual on this amp it would be great or any info at all.