Great thread. I'm learning this kind of thing myself so it's interesting reading.

Our local fest was running a stage recently where, outdoors, mind you, the feedback problems were huge. I think what it finally came down to was tons of instruments on stage, with monitors all way up, and a low tent roof that was (I think :?) bouncing sound down and all over the place. The worst was the flute; we had to cut her monitors right off. I think it was the condenser she was using was just picking up everything.

One question, if I may. Is it possible there was a phase problem in annamora's case? Or is that ruled out by the feedback problem? sb