Tomorrow morning I have a chance to pick up a mint condition BA PV800 for $80. I've never owned a BA product but the reviews seem to be mostly positive with the exception of a few talking about a hum which I can assume is the 60hz hum. I've been told this unit doesn't have that and provided it doesn't I plan on picking it up. Has anyone used this specific sub? Are BA subs in general half way decent? I'm pairing it with a pair of Mirage Omni 260 towers, a CC1 and two pairs of Mirage Omni 60's as well as a pair of Velodyne CT-150's.