Pardon my lack of knowledge about amps, but I just bought my first amp and a few pedals and am experiencing technical difficulties. I have a Bruno Super 100 with a Gmajor, delay, wah, jemini, ocd, and tone press hooked into the front of the amp. Some of these pedals add some noise to the signal, mainly hiss from the distortion and the compressor. There was a slight hum mixed in with the hissing and I see black smoke coming out the back of the amp. The tubes are glowing like the sun. I put the amp into standby and the tubes cool down, I unhook the pedals and hook a guitar stright into the amp and everything is fine. I'm just curious for some ideas on what could have went wrong.