Hello Davey
Here's a recommendation which will save you some money. The best bang for the buck in subwoofers, in my opinion, is the Vance Dickason Titanic 10" subwoofer kit from partsexpress.com. Even a monkey can put this kit together. (not suggesting in any way ...) The cabinet is already completely assembled, you just have to screw in the plate amp, connect the driver, screw it in, screw in the really beautiful large black chrome plated brass cone feet. You've got a great sub.
Cost delivered is $350. I have a Klipsch LF10 (supposedly 1640 watts) and a Velodyne CHT100, both cost much more than the Titanic and the Titanic holds its own. It has slam and is very musical.
For the money, I don't believe you can do better than Axiom speakers. I'd check the Axiom Factory Outlet and get whatever speakers you are looking for there. You'll save even more money.
I haven't heard the Axiom subwoofers but they do not get the same uniform rave reviews as the Axiom speakers.
