I am sure M could figure out picking up the Powerline signal from the AC and then filtering the AC inside the unit. The cost of that sort of tech is not that great on a �4000 plus unit.

Besides if AC conditioning was that important would M sell one?

Video Sources: Cheap Samsung BluRay, Xbox One, Virgin TiVo HD
Audio source: Hifiberry DIGI on Raspberry pi running
max2play.
Music server: MacMini '06 running iTunes library
Output (3.0): G61R, HDmax421, DSP5000, DSP33C and Samsung 29in LCD