I've got:
1) Broken JBL BP1200.1 Amp
2) Broken Cadence 4-channel, says A5 + HC on the board.
3) Functional BOSS REV-585
4) Functional amp from Logitech Z560 computer speakers
Someone had attempted repairs on the JBL and the Cadence amps and I'm not quite sure what was done, people just gave them to me. The JBL does appear to have taller caps installed in one spot. The Cadence is also missing the side plates, it is board and main heatsink chassis. The bottom plate for the JBL is missing.
The two functional amps can be yours on the cheap... I simply don't need them.