Looking at upgrading my polk psw-350 sub to something with some more punch. Would like a smaller footprint- along the lines of the sunfire- but may stay with a comparable size for the performance. Have read some good thing about the new SVS- but still like the small size of the sunfires.
The SVS looks pretty awsome for the price. But the Sunfire is also an excellent contender. Both have excellent bottem range and are very accurate, best thing to do is to try and find reviews where either is paired with your speaker set.