Nope, none at all.

As stated above I have gotten rid of the humming sound somewhat, but not from changing outlets.

When playing the ipod, there I can tell that "something" is getting to the subs but not "everything"... so there is somewhat of a continuous rumbling effect that will go to the beat of the music, then, when I crank up the volume, I get the thump the 800 is supposed to give...

once I turn up the volume and get the music bass, i can then turn it down and the 800 will still respond to the bass.

- Majik

Epic 80 system
Ep 800
Denon 3808
Optoma HD20
PS3
vp180
extra QS8s (to come soon)