Yeah, that is a small room. I don't know about SVS but from what I gather, Hsu subs are more musical. But then again, I don't own either brand, and that may very well just be hype. I did do a little research on drivers though, and the Ultra driver is an underhung design which equates to lower distortion as compared to an overhang design. I wish I could find out more info on the driver in the Hsu TN series because that is supposed to be a reputable driver as well. But as Ninja said, as far as SVS is concerned, the ISD driver may very well be the better bang for the buck of all their other drivers.