why would you put a audiobahn with kicker. audiobahn makes some of the worst stuff i ever heard. I tell alot of people this, whn you can buy car audio stuff from circuit city, best nuy and other stores like that, that means that its not high or goo quality stuff. watch out for stuff like that, sony garbage audiobahn garbage, and now rockrd fosgate is following suit. try the kicker kx1200.1 thats a great amp for those subs.
You could do better for the money. Square subs have tendencies to cone flex, surround separation, limited excursion, lead slap, uneven pressure points (requiring extra bracing, which = more mass) and many other problems. Like it's said above, round=good. What's your budget?