Was hoping someone here could shed some light on this as I have zero idea what could have happened to cause this. Went to turn my amp on the other day, only play maybe once-twice a week these days, but when I turned it on, the volume output I was getting started getting lower as I was playing and seemed to bottom out at about 1/3 of the normal volume. Even with the volume knob up full blast and the gain up half way, it isn't even half as loud as it was originally. I have seen this happen on stereo receivers when people don't turn the volume off before starting them and then play a song, turn it on, and let it kick on full blast, but I have always turned my volume on my amp all the way off before turning it on/off. It hasn't been subject to any blasts and is plugged into surge protectors nor do I just unplug a cable when it is on. Any advice?