Hey all, Due to a change in drummers we've not been gigging much, but after two recent gigs in the same club I'm kinda stumped to this problem. My current rig Berg EX112S, HT122S, SansAmp RBI, run through the power section of an Ampeg amp - sounds just great in the practice room. Gig 1 - Took this exact setup, changed not a single setting, including levels and volume -- started playing, heard this farting sound like I blew a speaker. Played the gig, got home, next day in practice room everything was fine. Go Bergs! Gig 2 - Last night, same club. Took only the HT122S and an Ampeg 1x15 (borrowed) for some extra lows maybe, been trying this at practice, again no problems at all. Made SURE I plugged into a different outlet onstage as maybe last time it was a power issue. Started playing, I kept "hearing" myself out of tune??? Checked tuner numerous times, everything seemed right on. So I figured maybe a phase issue with the two unmatched cabs. Anyhow ... what do you think? Its just this club, that room, their power, or some weird gremlin? Its downright puzzling I tell you. Next gig I'm going back to both Bergs ... that's why I bought them after all, hehe.