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

Oddly enough I'm not seeing the pic.

Paarasound made some improvements and upgrades over the years. How do they sound?

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

If you use the high bias setting and are driving your loudspeakers hard, they have a significant thermal load. My brother failed his driving Magnepan 3.6s. I think I would set my bias to low unless I was driving easy loads at normal volume. YMMV.

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

I hope these are about $2k or less. Mismatched will be a tough resale.

How about asking Phil at Parasound to give you some advice?

I have a friend selling a good pair in the Bay area. About $5k as

I recall.

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.