Interesting...so with no inputs/outputs plugged into the Outlaw it's more quiet but still giving out an audible hum...until I turn on the 360 which is on the same power circuit and then it starts humming quite a bit more loudly.

But it never quiets down to where you can't hear it at listening position when the room is quiet...which quite frankly is not what I expect from a a piece at this price point.

Will have to wait and see what difference, if any, the DC filter makes.