I was looking at those, too. I wrote and also called the company and got great responses both ways. I wanted the most musical subs for a stereo, with Maggie 1.7s. They suggested their sealed cubes, SB 13 Ultras. So, I think if you are looking for home theater, their larger cylinder subs are great, but the sealed ones are better for music. I ended up using their suggested crossover points as well. I use them in stereo, sounds much better than dual mono, and I use an Antimode Cinema for each. I think you should consider something like that, unless you have an AV receiver that can reduce room created peaks. The subs have a lot of ability themselves, but you need equipment that can identify just where those peaks are. So, while I can't speak about those particular subs, I think very well of the company and their products in general.