Using it at practice right now. In all honesty, I was driving the amp pretty damn hard. I'm using a y split cable and running input one at 2, input 2 at 4, master at 9. It was sounding great, got to the end of our third song, the volume totally dropped, just leaving a really thin signal coming through, then the amp turned off. Pulled out the fuse and it has blown. replaced it and the amp turned on, it came on but as soon as I put it off Standby, it blew again. All tubes are glowing fine, but there is an awful smell, kinda like solder, maybe that is Just the fuse (i hope) or have I burned out the circuit? Please. any help is appreciated. Scott.