I am re-doing my HT, and part of the upgrade will be an SVS PB2-Ultra....so my PB2-ISD is available to a good home. Please note: This is a Beta unit that I picked up from the guys at SVS last fall. It has a small nick or two on the front, but aside from that it is simply an awesome sub (as all their subs are). I was running this in a 20x20 living room that opened up into a foyer with 18' ceilings, with additional openings into other rooms. This sub ate it up. It filled not just the room, but the entire house with killer bass. This sub excels with HT, but it also shines with music. These list for $899 new. http://svsubwoofers.com/subs_pb2_isd.htm If you can pick it up in person or meet me within a reasonable distance, I will let it go for $475. Anyone who has heard an SVS knows that is a killer deal. Aside from the aforementioned nicks, this sub is perfect. I have never bottomed it out, and I never got the sense it was even close to doing so. Lastly, I was assured by Tom and Ron at SVS that this sub was fully covered under warranty, and last I knew the warranty is transferrable. Please contact me at [email protected] if interested. Serious inquiries only, please.