Sounds like my Fender Concert amp. Shortly after buying it, it was "staticky" and noisy/scratchy. Local dealer said he couldn't find anything.. I was assuming a tube connection was bad. So I took it to another shop and we talked about what it could be and they said they could check out the chassis & etc. And that is what they found, 4 or 5 really bad connections and at least 1 wire wasn't really connected at all! When I got it back I was amazed at hearing the true amp. It's said they don't make'em like they used to. I say Thank God they don't!