I talked to Scott on Friday. We talked about what I was hearing & experiencing, and what steps I had done for troubleshooting.

I will say that while I am not pleased with the buzzing, I am very impressed with what Outlaw is doing to rectify the problem.

He is shipping out another 7700 to me for replacement. I may have fried an internal piece of circuitry while connecting & disconnecting electronics, so I will hook up everything before plugging in anything!
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Panasonic TC-P65S1 65" Plasma HDTV, Marantz AV 8801 Preamp, Outlaw 7700 Amp, Klipsch RF7 (X-over dean G modded) RC7 (X-over Dean G modded) RS7 CDT-5800C speakers, Outlaw LFM1 EX Subwoofer, Oppo BDP-93, B & O Turntable, Toshiba HD-A2, Sony CD & DVD 400 disc jukeboxes, DirecTV HD-DVR, PS2, PS3, Wii, Harmony one remote, Monster PowerBar 1200 for the TV, sub, PS3, HD DVD and Wii, Tripp Lite Isolation Bar for the Amp, Pre-Amp and other sources.