So I just recently got a brand new Fender Bassman 500. It's been awesome at weekly practice for the past 5-6 weeks. However just this last Thursday, it started dropping out a little bit...and then it came back in and seemed much louder than before. This was while playing a song so it was hard to tell for sure, but the other band members seemed to agree that that's what happened. Figuring it was a cable or pedal, I plugged directly in. Then the sound cut out completely for like 20 seconds, nothing. We stopped playing, I unplugged and plugged back in to the amp and it was fine. I figured it was the input, so I used the second input and it was fine for the rest of the night. The next day we had a show, so to be safe I plugged into the second input. I also bought all new cables just to be sure. Sure enough, it cut out a few times during sound check. It was fine for the show though. So I am going to see if I can get it to happen again, and I know that the preamp out/power amp in is a possible place to look, any other things that I should look at? I want to see if it's a simple fix before I bring it back to GC and not have an amp for an extended period of time while it gets (hopefully) fixed. BTW, no lights came on at any point that would imply that it was a protect circuit. The amp looked like everything was fine except the signal was just cutting out. Thanks!