Does anyone have any experience with this sub (own it, heard it, or even heard of it?). I've been shopping around and was going to buy the Hsu STF-3 when I came across this sub. Apparently Dr. Hsu participated in the design (according to Outlaw's site) and I know Outlaw makes good equipment. Wondering if anyone has any opinions over whether this would be a better buy than the STF-3. (I'm dealing with a large space so a bigger sub is important but I'm more concerned with how it performs with music at reasonable volumes).