Right channel cuts out Please Help

I've had the same problem, but with the left channel of my Creek amp. The next time you get the same cut-out in the right channel, try connecting headphones and changing the music source. If the right headphone channel is still out, it's certainly not the speaker cables and probably not the ICs. Try pushing the power cable into the amp as hard as you can, hold it for a few seconds and see if the channel comes back. I tried it and my left channel came back to life, so I then tried using the stock power cable that came with the amp and it worked perfectly. The problem may be that the female IEC connector in the power cable is not tightly gripping the prongs of the amp. When the amp draws lots of current, the prongs heat up and the connection may be loosening. I live in NYC and all electrical wiring is already grounded under Code requirements, so I don't think it's a ground loop problem for me. I'm going to try disassembling the IEC connector assembly of my "high end" cable myself and tightening the connection. (Perversely, it's usually the "high end" component that causes the problems.) I hope it works. In any event, try using a basic power cord, like Radio Shack or your stock cord, and see if you still have a problem.

Have you considered checking the "quiescent current" of the amp or put another way the voltgage of the amp when not driven by any source? I've tried setting to to specifications and it worked. A final thought: CLEAN EVERYTHING! Make sure all connections are clean. (This may sound crazy, but I've found fibers and other material in the female IEC end of a power cord that I cleaned by a blast of air from a simple computer keyboard cleaner I bought at Staples. So make sure all oxidation is removed from the contacts and shoot a blast of air at all places that might accumulate the same kind of material that always winds up in one's navel.)