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I just got my BX 1200 3 days ago, and discovered a strage problem on Sunday, while doing the music service at my church. I had played the amp at home for the first 2 days after purchase, and everything was fine. When I plugged in the balanced XLR out to the board, it seemed to lose power. As I truned up the master volume control I noticed that the sound would get louder until about the 4 position, then gradually add distortion, and at about 6 on the dial would cut out completely! I discovered that it is related to the phantom power being on. Tried it at home with an audio buddy pre, and the same thing happened. As soon as I shut off phantom power, it was fine. Anybody else try this?
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