Just noticed Sat nite that there are 3 little red lites with the letters O/L located below the 3 control knobs located at the far leftside of this amp, they are the FET - TUBE control knobs. I used Avatar B2x12 with my SWR SOB 1x15 as my setup for the first time this weekend. I can usually set all knobs at 12 o'clock and I'm good to go but because we were in a larger venue, I cranked some EQ knobs at about 1 o'clock. Had the FET, far left knob and far right volume knob set at 2 o'clock, not extreme I believe. When I looked back at my rig I noticed the 2 little O/L red lites coming off n on like a limiter lite might as I played. And it seemed the red lite next to "protect" was slightly lit up as well. The green signal lite was lighting up as usual but I did not notice the actual red limiter lite coming on at all. So are these O/L lites flickering to indicate good or bad news to the player. I mostly use only one cab and maybe had not noticed the O/L lites before cause they are located below the knobs and I would be looking down at my rig. Anybody own this amp can let me know if these lites, the O/L and protect lites coming on intermittantly are of a concern for me. Don't have a manual to refer to.