Need a little help with Original Parasound JC-1 amp(s)

Russ69,

They sound pretty good, but the rebuilt amp runs much hotter than the older non-rebuilt amp that has the missing heat sink. When I first got these amps they had mismatched parts then I asked the dealer to match them up and so far they look a little better from a parts perspective but I don’t know enough to notice right/wrong on the internals. I’m having a friend/tech coming over tomorrow to check the bias and DC offset as well.

Old original amp - Missing heat sink

These are driving a pair of B&W Nautilus 801 and I wouldn't think they are too hard on the amps?

Yeah I said 2k with mismatched parts and the dealer took them back to have them matched up (better). Although I think the rebuilt amp before matching up sounding a little better for some reason. I bet the tech never biased them however since they are running at different temps.