Hey CB I'm designing lights for a show, and every time I take the instruments below 70% intensity the house monitors make this buzzing sound. It sounds like interference with the cables somewhere, at least to my semi-trained ear, so I went today and separated a rats nest of XLR cables, to tape the ones running the DMX signal apart from those carrying signal from the mics to the sound board. The problem still exists. The last show I did in this venue didn't have this problem. I ran Godspell for two weeks in this space with no problems of that nature. Then another local community theatre came into the space to put on a show and BOOM this problem starts. The only way I've been able to get the buzzing sound out is to set the EQ so there's no feed to the monitors on stage, which is bad...obviously...any suggestions? I know a bit about sound, but I've not had this problem. I figure it has to have something to do with the way cables are ran, but I'm not really sure what to do that I haven't already tried. Also, the theatre manager said this problem started when the other theatre came into the space, the show I'm designing now opens in two days, and this is driving me crazy.