I picked up an older 8 ohm S112 avatar cab on craigslist awhile back and used it with my V300H for one or two practices with no problems, but at my bands most recent practice there seemed to be in issue with the rig. I was playing the amp at a moderate, reasonable band volume and every 30 seconds or so the signal would completely cut out--like no signal whatsoever. It was like the amp was going into some sort of protection mode or somthing. The amp itself didnt turn off--the power light remained on. The amp wasn't overheating or anything--the back of it was cool to touch and the fan was running perfectly fine. I tried a different speaker cable, instrument cable, power cord, etc, and the same problem occured. The house we practice at is old, so could it be a voltage problem? I am unsure if the V-types have some sort of protection cut off for low/high voltages or somthing. But, then again we are running two other tube guitar amps that dont experience any problems . Is it possible there could be somthing wrong with the cab? I checked the speaker connections on the terminal and jacks and they seem just fine. Could some bum crossover components be shorting or somthing? I am really hoping the problem is in the cab or the house, because the trace elliot is my pride and joy...I dont have my other cab right now, but when i get it I will see if the problem is still there. Anyone have any ideas?