I am still working on that. I feel I had an amp issue which ultimately led to the demise of my speakers. I'll let you know when I get a proper diagnosis.
I have JC1's - one side was not working properly. When I swapped to see if it was the amp or speaker, both sides stopped working. I suspect a faulty amp, but my amps have come back from Parasound with a clean bill of health.
This is the second time my amps have been out of commission, so I do suspect the amps and not the speakers. Besides, it is unlikely that both speakers would go out, but considerably more probable that one amp go out. By swapping I allowed the amp to damage the other speaker too. Wonderful.