Well, I've had the amp over a year and it this is the first bit of trouble I have had with it. Actually it does not really hinder sound or playing, but I just thought it was odd. First, when I have the amp on standby and insert the 1/4 inch jack into the input, a pop eminates from the my speakers and the red gain light flashes. It did not always do this, but it started a few months ago. Now the only reason I find this odd is because I was under the impression that on standby the signal is sent to the tuner output in the back ONLY, and nowhere else. Also, I was trying to play the amp at a very low volume for the first time tonight, (first time I've actually had it home and not at the band rehearsal room) and the sound was coming out like it was overdriven, even with the gain and drive knobs lowered. When I cranked it the overdriven sound dissappeared. Is this amp just meant to be played loud and no other way? And finally, tonight when I had the amp turned down to this low volume overdrive sound, I switched to standby and could still hear the bass! I waited a few minutes to see if the standby was slow to kick in, but the sound remained, I was getting sounds while it was on standby! Anyone know what would cause this? The vocalist for my band turned it on once without it being plugged in to the cab, but I shut it off almost immediately. I've heard something like that can damage heads, could this be the cause? Now I know these are not big problems yet, but I would prefer to fix them before they possibly caused other damage. Thank you for your time and sorry for the lengthy post.