Hey I know it's not a subwoofer that you offered, but personally I think that the RE SX is what you are looking for.
With the amount of power you have listed, it should be the LOUDEST SPL sub, I'm not promising or guaranteeing it, but from what I have read, and my friends own the MT and the SX, so from what they have told me, the SX would be louder than the MT with that kind of power. Now I have been told that with that kind of power the L7 would beat the Solo X so I'm using deductive reasoning to determine that the SX is what you want.
Again, I'm not saying 100% for sure I'm right, just trying to help you with what I know and have herd, go with the SX.
Just my 2 cents,
Craig G