Something just blew in my amp. It was playing fine this morning, and then just now, I plug in and hear this hum. It's almost like 60hz hum, but it's there regardless of the EQ, volume, whether an instrument is plugged in or not, etc. I tried using the other output, but get the same thing. And then there's the classic "fried component" smell. No magic green smoke, though, but I haven't opened it up to see what's going on. I'm the second owner, and have had it for a few years, but it's never been gigged and I live in an apartment, so the volume has always been low. I figure it's no longer covered by warranty, so should I send it right off to Gallien-Krueger?