I took a quick look. FWIW I'm a very happy SVS SB2000 owner, but on paper for 70 bucks more the L12 looks to potentially offer significantly deeper bass performance vs. the SVS SB1000. It's a little bigger and weighs almost twice as much, and it also seems to offer more flexible adjustment options. On paper the L12 looks like an overall better value, but ultimate quality of the bass produced is a significant unknown. That said, I've seen nothing but positive feedback from Rhythmic owners so I'd be surprised if the L12 is a disappointment. Again, FWIW. Best of luck.
