need in of help.

Current system is B&W's 603 fronts, center, and rears. All powered by Anthems AVM 20 Amp and Preamp. I have Denon SACD but currently have no sub.

I thought I was sold on the svs PD10 until I read some reviews on the LFM1. My faimly room is only, approximately, 15 x 17 with 11 foot ceilings. I thought the LFM1 would be too big so I started focusing on the lfm2 which I now believe is too small! I also understand that downfiring subs are not as good as front firing subs for music, is this true?

can anyone make a recommendation on a good sub and one that would piss off the neighbors.. I wish Outlaw made a 10 inch sub but I guess they don;t.

really look forward to your replies / suggestions.

dave in buffalo