Axiom 5 channel (used to be six but one is down for the count...should have mounted it to a wall stud) and with an SVS powered bass cylinder all run by an onkyo receiver. Yes it was originally intended to be a home theatre and not a music room but this is far and away the tightest sounding system I have ever heard and nothing feels out of balance.
If you want a single subwoofer that wont make your ears bleed and still have all the bass you could ever want, that's the one I would recommend.
