actully you may have hit the jackpot with those subs. They are the Lanzar opti drive subs. They are there best of the best for Lanzar and sound pretty **** good to boot. I would jump all over that before I do. I mean they usually go for about 220 on onlinestereo.com. So that is an amazing price. They put out about 1300 rms. So get a good amp to power them and you will be pounding.
Opps I should edit that. I just looked up and is the sub under there best. It is 750 rms. Still not a bad woofer. Now I am dissappointed. I was thinking of stealing that from you,lol! Just kidding. Also the type X Sound very good, but for that price of the X's, I am sure you can find something better. Peace!