Subwoofer Selection HELP ? ? ?

You won't be disappointed with the PC Ultra.

If your Denon "remembers" bass mgmt settings for different inputs you're all set. Haasle free for movies and music.

I've never heard a sub as tight as the RELs, britannia series

Sorry to muddy the waters... but I'd be looking at the REL Stadium or Aerial SW-12.

OK, I got the SVS, this thing is a massive beast. My front Maggies are in beautiful Bear Lake, MN being fixed, so I have not tried to integrate it with them yet. But I did plug it in, and hook it up and play some movies, just to try the LFE effects. Wow, this thing can move some air.

I think I am going to cheat and buy a Velodyne SMS-1 to integrate it. Anyone have any experience with the SMS?

I think you went the best route. SVS makes amazing subs. Ive owned paradigm servo 15 (stereophile a / b) the hgs 18 velodyne, the martin logan descent, and none of them sounded as good on music or movies as the svs ultra/2. I will say a sms-1 takes it to another level, I bought one and love the combo. Why pay more for subs that really dont give you any more. Im convinced most people just think svs isnt as good as the others mentioned because of its price. This goes to show paying more doesnt always get you more.

note**I must admitt I only run my sub at 35hz crossover point because of my large full range focus 20/20. Maybe it wouldnt do as good for bookshelf speakers for music. I do stress MAYBE.