sorry. armyrob, i am not well versed in either of those amps. i was only speaking to the point of adequate power to your drivers. i am an aggressive listener, and i enjoy music without having to crank it up to 31 in order to gain the full effect. definately find out if the specs on these amps are accurate, i.e., thd, rms, s/n.
i am no longer a fan of class d amps, but i had the fosgate 501bd and it absolutely hammered my 3jlw3's without effort. the "birth paper" stated it actually delivered over 600 watts. so, again, i just don't have any experience with the two previously stated amps.