I have a regular gig that I use my motion sound MS-100 as my monitor and plug into the house mains. I run my T2 to a Behringer Xenyx 802 (http://www.behringer.com/802/index.cfm?lang=ENG) and then run seperate outs to the MS-100 and to the house mains using the main out and control room out. I have tried the MS-100 on each. I get a buzz (not a hum, a buzz) on the MS-100 on anything short of very low volume settings. The buzz changes as I move around or I reposition cables, so it is some kind of interference. I am using all new/newer monster cables and I have tried several different ones with the same results.

Any suggestions on how to kill the buzz?