MA Audio MA12BPX 1200 Watt Dual 12" Bandpass Box Car Sub Enclosure
These subs have great sound and the quality is all there. The only reason that i bumped it down a star is that when you really have the system going, there is an annoying rattle coming from within the box.  The box is really nice other than that.  The vents are a great feature, along with the plexy glass window.  As far as sound goes, they produce a very full sound. If your looking to have something that just sounds good when your in the car, this is for you.  However, if you are looking to impress the peop