American bass makes good stuff to, the 500.1 or the 1000.1(two 500.1 in one heat sink) are nice amps, powerbass is nice to, when will the new massive amps be available? My truck should be done in about two weeks(hopefully!) I think with your current build the subs should be fine, If you rebuilt your box and gave them more air space, they may not take all that power. Sounds like we didn't give the aluminum cone dmx's a fair shake, not sure if massive has any T/S parameters on the aluminum cone but the fs/fo must be in the low to mid 30hz range.