On Mon, Mar 21, 2005 at 10:41:01AM -0500, Spencer Russell wrote:
just turn up the main volume until you start to hear feedback, then back down a little, then you turn up each band on a graphic EQ unit(Those things with 15 or 31 sliders, each representing a narrow band of frequencies) and find out where the first resonance is, and bring that band down some, which allows you to bring the mains up higher, until you run into another feedback area, so then you repeat the process of finding the resonant frequency and ...
I realized after writing this that it's the monitors that usually need the most feedback control, but same concept.
spencer