Recently purchased an H/K Citation 16 to run my mains using the preamp outputs on my H/K AVR-7200, problem is all of the preamp outputs generate a LOT of noise for some reason (the right more than the left channel, oddly). A friends AVR-630 also has the same issue with a Behringer EP2500. I'm curious if this is from the internal amps still begin on, or if there is an incompatibility in signal strengths or something. Any help would be greatly appreciated. By the way, there is no noise when using the internal amps, and the Citation runs fine with a portable MP3 player plugged into it.