If you want my opinion you better go with Kicker, they are specialist in sub woofer fabrication and they got a great reputation, you'll have to put a bit more money but it worth it... i have 2 12" comp VR with 1250 W amp pushing and let me tell you that you can't see anything in the mirrors
It' all depending of the set-up you want, wich quality and how much you want to pay!
To my opinion Alpine are too comercial, they got good product but that's it, it's not the best qualiy stuff you can get!
