probably. For those following my feedback ground loop buzz/hum issue I did some more testing tonight looking at every combination of magni and cable box both straight into wall/power strip/different combos. Also tried with my bluray player running HDMI into TV and then using amp out from TV to magni and still get horrific buzzing. With the bluray, it only happens when the disc is playing something, so when I skip to the next scene it stops for that brief period where disc is finding new location. Plugging the source device into same circuit as my magni doesn't do anything.
Perhaps more interestingly, the buzzing/hum is almost inaudible when using my D2000's but is loud as hell when using my Mad Dogs. In both of these cases when I touch/palm the magni, the buzzing is reduced significantly. Is there something about the sensitivity/impedance/design of the T50rp that makes the buzzing so much more audible?
I am awaiting a ground loop isolator which will be here tuesday and will report back if that helps. Will stick that between my source and magni.