Hi All, This is my first post to this forum: I have been an audio/video enthusiast for 18 years or so. I am currently rebuilding my HT system after many years of neglect. I'm running all digital sources (pana blu-ray player, Sony TV with Pandora and other apps, direct digital connection from PC). Receiver is Integra DTR 30.1 driving Paradigm Studio 20s in a bi-amp configuration (each speaker gets 180 watts). All my cables are from monoprice. I sold my old Paradigm PS-1000 some years ago when I was in a tiny apartment. It was decent but not amazing. I now live in a large modern apartment, and the main room, where the system is is 30x12x8.5 (3060 cu ft). I have shared walls only on the floor. I will not be able to turn the volume up particularly loud, as I want to live in peace with my neighbors, but this is a well-build high-end apartment complex with pretty good soundproofing. I'm looking at a variety of sub options and am flexible also open to suggestions. I have used and loved paradigm equipment for nearly 20 years so my instinct is to go with them again, but I would like to hear opinions. My desires are in order: - clean accurate sound (I will level match the sub using the Audessy in the Integra) - deep bass - looks - size (smaller is better) - price (600-1000) I'm looking at: Paradigm Sub 12 Paradigm Seismic 110 SVS SB12 NSD HSU VTF-2 MK3 A small Carver cube like the Sunfire True Sub The big paradigm is in another price level - I would only buy this if I could find an amazing deal. The Seismic 110 can be had for around a grand, the SVS $750 and HSU around 500 bucks. There are things I like about each of these (this is pre-listening test). I assume the Sub 12 is the best quality, and it looks pretty good. I love the looks of the Seismic 110. The SVS and HSU look to be great deals. The HSU looks to be butt-ugly which would be a deal-killer. Would a big sub be overkill in my situation? Should I be looking at smaller subs like the Carver? How much does it matter getting a sub that goes down to 18HZ? My old paradigm went to around 30 HZ and was adequate for most, but not all material. So what should I be looking at? Strong opinions welcome.