Is this acceptable?

[ReneBMW]

Have you measured continuity between al the mosfets legs?
These are close to each other so if a tiny piece of wire or solder contacts another leg, you might get problems.

[vwdude]

Yes. At the moment the amp is sitting with all heat sinks removed and the MOSFETS are lifted slightly to verify that no wire is under them. I also used a multimeter to verify no continuity between the legs. I have eliminated the MOSFETS from the list of possibilities. I will know more once I test it with the rectifiers removed.

I can say that the power supply FET resistors were not what I expected. If memory serves I put in all 330 ohm resistors. They all match (same color stripes) but when I tested them with my DMM 2 of them were around 100 ohms. I doubt this is causing the issue, but I will order all new resistors when I get new FETs again.