I recently bought a QSC RMX850 power amp. When i first got it I was confused with the DIP switch settings on the back of the amp and I accidentally set channel 2 and it's filter to the "on" position, and I was bridging the amp. Then I used it for the first time at practice and it was clipping like crazy at low volumes. Then I realized the problem and fixed the settings and its working great now. My question is, Why or how does having the ch. 2 filter on when running in bridged mode effect it? Every since this has happened I've been wondering what makes it do this, I feel more comfortable knowing "why" it does this rather than "just because it does". on a side note, I gigged the power amp for the first time last night with my Eden 410 cab at an outdoor gig and it did WONDERFUL!! I was a little worried at first because of the back of the stage being open so I ran through the PA as well, at setbreak i talked with the guy running the sound for us and he said he turned me all the way down on the PA because the stage volume was plenty loud.