The only ones I am familiar with are the SVS, HSU and Axiom. They all look like they can do 17 - 18 hz without an issue at +/- 3 dB. They're all 430 - 500 watts. I am not sure about the HSU, but both the Axiom and SVS have digital processing. The Axiom does look as if it can play louder than the other two at a given frequency, but it's double the price. Double up on the other two, and you have 3 - 5 db more ability, which evens the playing field.
Of course, two gigantic boxes in the room may not be what everyone wants :).
Last edited by Potatohead; 11/23/09 07:17 PM.
