I'm the new owner of a used Gallien Krueger 700RB-II which seemed to be in excellent (I mean real purdy) condition (got it for a steal). Shortly after I purchased a used Hartke 410XL cab in pretty nice condition. On the back of it states, "240W @ 8 Ohms." Now, my band used all its gig money to get this rig for me. During practice, it's flawless. Well....last night at our big show....I had the woofer setting on 12 o'clock (halfway) and the volume also at 12 o'clock and the damn thing took a dump on me during our fourth song. ***??!! The 'power/protect' light went from the soft soothing blue to a red. No sound, nothing. It was embarrassing. I turned it off, turned it on, still red...unplugged it, plugged it back in turned it on, still red. Luckily, it came back to life towards the end of the song....don't know how. It was good until our last song, about 7 songs or so that is.....it just died on our last song and wouldn't come back. Fellas! What is going on??!! This rig looks so nice and worked really well for practice...can somebody please help? I'm really lost.