i have been told that the mt is better for spl by some and by others the atomic apx and the dd 9515.....which one is more efficient? the mt's they give you nothing for efficiency, air space, hardly no nothing at all including no warrenty. the dd everyone says, its more for daily than spl, more efficient and so on.... the apx i hear you can put tons of watts on it as like the others!! my main question is.....is there a clear and present champ here or is it all a matter of opinions and the one that you like?

i will be buying 2 z-1 amps, just wanna know which one do i need for me using these amps. i want the numbers only. and if needed 2 more z-1's!!

NEED TWO 15's anyone????????.................................... ........................