In June of this year, I purchased a Crown K1 to use as an external amp for my Denon 2805 receiver. It has worked fine until today. For no apparent reason, channel 1 now is outputting about 1/2 of its former volume.
No warning lights are lit, like the TLC. I've verified all the other connected equipment is functioning properly. I tried the obvious of exchanging the inputs for channel 1 and 2, and the problem it definately with channel 1. The amp is sitting on top of an equipment cabinet, so it is getting quite a bit of air circulation.
Aside from the obvious send it in for warranty repair, is there anything else I should check?