You get what you pay for.SVS would be cost effcient for HT but muisc a multi driver sub will better it.
OK, I bought the new SVS PC13 Ultra recently to match with Magnepan 3.6R's and for home theater. I knew that the SVS would be great for home theater, and although I really only wanted one sub, thought chances were high that I was going want a second "fast" sub for 2 channel. When the sub came, it was great at moving air with fantastic depth, but I couldn't really get it to match with the Maggies, so as I had resigned my self to the fact that I was going to have to buy a Rel, Velodyne, Vandersteen, or the like for to match the front end. As a last ditch effort though, I bought the Velodyne SMS-1 equalizer and that turned out to be a stroke of accidental genius. I was able to then quickly integrate the sub with the Maggies, and still get HUGE air movement for movies. I couldn't be happier. I really like the SVS product. They need to charge a bit more, and include an equalization system, or breakdown and pay Velodyne for theirs. Huge improvement.
I intend on ordering an SVS SB12-Plus for my office system. I've been impressed with the independent measurements of their subs, the outstanding educational information I've received from Ed Mullen with SVS and the feature set of the SB12 makes it a good choice for my office. I'd like to get my M&K MPS-5310 sold here at audiogon first, but I may not be able to wait.