Here's my two cents since I have both, emotiva and iNuke amps. I have the iNuke6000dsp amp on 4 18's, and its a beast. The emotiva XPA-7 runs the fronts, center and surrounds. The UPA-700 runs the ceiling speakers. Have never tried to run the subs on the emotivas. The iNuke has the dsp which helps to make adjustments as Scrappy is suggesting.