i agree with bbasso

i have the new $400 dollar alpine deck with infinity 6.5" components in front (reference series, the kappas dont fit) and 6.5" coaxials in back, also infinity reference. with a 500 watt kenwood amp 4 channel powering those. Then a 700 watt rockford amp (350 by 2 into 2 ohms) powering 2 12" rockford HE2 subs in a sealed box......and let me tell you, u wont notice a power diff unless the stereo is blasting and IT POUNDS!!!!!

if u go to track, remove box, the stereo is worth it, remove ur deck's faceplate when u leave car somewhere, its just more for people to see and want