I came across a pair of planet audio 5.125" in the wrecking yard I knew from the size of the magnets these might work and hell I gave 30.00 for the speakers and a box of other misc. parts,now I have a planet audio sub enclosure w/4 8" subs as well as the door units I am running a pyle 1000 watt 4 ch for the subs and 2 rockford fosgate punch 500 amps for the front as well as the roof pod in back I can't remember what those are I have crystal clear clarity from the mid to highs and enough bass to blow some massive bubbles fom the weather stripping when I spray soap on each to locate my stupid whistelling noise.