Here's my set up as of right now and I'm looking to add a sub to it. B&W, SVS, or HSU? Samsung 50' HDTV 1080p Marantz SR7500 7.1 Reciever B&W DM 602 S3 (fronts) B&W DM 601 S3 (rears) B&W LCR 600 S3 (center)
Frank I have a STF-2 sub matched with a Marantz SR8400 in a 20x25 sized living room. It literally rocks the walls if I don't configure it properly. For the price and performance I would recommend it highly.