Hello, my current speaker set up includes Infinity Kappa 6.5" components front, Infinity Kappa 6.5" 3way rears, 1 Kenwood Excelon 12" shallow sub. I want to upgrade the current amps I have(Rockford P4004 (50x4) front/rear and Rockford P3002 (300x1) for the sub. So far I have looked at Hifonics...