The sorry facts regarding the JC-1 is that they don't sound good unless you have 1200 - 1400 hours of play time on them. I heard a pair last year and frankly was underwelmed to say the least. They had a total of about 200 hours.
I would hope they sound great after 1400 hours, but me ( living in Australia) I am not going buy something I don't like the sound of, on the promise that it will dramtically change after 60 -90 days. If there was a money back guarantee - perhaps. I checked with the dealer today and the amps still only have 300 hours on them and they much prefer the W-5's. They thought I was mad stating that the designer asks you to put 90 days straight for it to sound decent.
To me Parasound should change the caps so anyone can hear 90% of what the amp is capable of after 200 hours of so.
Anyway I have given up on the JC-1 and will listen to a Pass X350.5 next week.
Anyway, my rant is over.