Any thoughts on how to test that? I could try buying a new AC cord. However, keep in mind that running a HDMI cable to another smaller LCD HDTV, on another outlet/circuit, I still get the buzz.

I will do this again with the new unit in case I forgot as part of the troubleshooting procedure.


Edited by cp1966 (12/13/12 06:32 AM)
_________________________
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.