Might be a dumb question, but yesterday I had a 4 channel 100 watt amp hooked up to my THD 2x12 cab. I normally keep the volume level at about 3 on all the channels. I guess when I was moving the amp I hit the volume knob on the dirty channel. Anyway, I am playing in the clean channel and then I switch to the dirty channel and BAM. The loudest, crushing sound I ever heard come out of the amp. I backed off the volume on the guitar immediately and looked at the amp. It turns out the volume on the dirty channel was at 8! When I switched channels the sound was so loud and abrupt it knocked an empty can off a table 15 feet away! The cab still sounds OK, but I was just wondering if something like this could hurt it? The speakers are rated at 80 watts so they can handle the power, but what about the abruptness of the volume change?