So, my theater has an old(ish) dimmer rack in the booth. I went into tech this weekend and found a horrible buzz in the sound system and headsets whenever I power up the lights. If there are few lights up or they are at full, the noise is almost gone. When I have a lot of instruments up (especially at low levels) it buzzes worse than any interfierence I have ever heard. It seems to me that any cable running sound signal that comes anywhere close to the dimmers picks up this hum. Problem is, all of my sound and clear-com cables have to run through the booth. I remember reading once (from Van maybe) how to build a wire box that could help with this kind of thing. Has anyone had similar problems and does anyone have any advice? Thanks!