I am new to car audio and wanting to build a mid-range (budget wise) system. I am looking for QL more than SPL. I am currently looking at 2 8" kicker subs, Prime Series 6 1/2 Rockford Fosgate component for the front doors, and 6 1/2" MTX Terminator6 coaxial for the back doors (just as filler). Not sure of what amp or head unit to go with or if I could get 1 10" sub that is as good or better than the two 8's. What do ya'll recommend?