Bob Crump (TG Audio/CTC Builders) was contracted by John Curl to design/voice the Parasound JC-1 monoblocks - based on the HCA-3500 amp chassis.
Break-in time with the JC-1s is horrible as it takes right at 30 days for the thinness to go away and almost 60 days for units to open up.This thread includes many of Bob’s comments. It’s an interesting read. No doubt, Bob would have a few choice words to add to this discussion. He wasn’t shy.
Curl thinks he has tracked down the severe break-in problem on the JC-1s to the high current Nichicon caps.
Funny, but some of the cheapest parts break in easier than the fancy spreads.......