Just discovered a faint hum coming from my power conditioner where I have the Modi MB, my amp and CD player hooked into. When I unplug the Modi MB, the hum vanished. Plugged the Modi into the wall to be sure it was the culprit and sure enough, there is a faint hum coming from the wall where it is plugged into. I wonder if it is related to the severe sound irritation coming out of my HD800 lately (hard to describe, just a very uncomfortable feeling listening to music, can't listen for very long).
I email Schiit about this. Has this happened to anyone else?