SVS makes a broad line of subs in three configurations for different applications--sealed box optimized for music, ported box for music or HT, and ported corner cylinder for maximum bass extension and output. The SB-1000 under discussion is a compact sealed sub designed for music first.
02-06-14: Swanny76109
I have no experience with the SVS but I think it is more of a home theatre sub.
To the OP: self-powered subs have come a long way in the last 10 years, let alone the last 20, and any SVS product is about as risk-free as it gets. They offer free shipping, allow a 45-day evaluation period to try out the product, and also pay for return shipping should you decide not to keep it.