Car Audio Subwoofers

So finally, after 3 months i got some beat back in my car. Box building starts tomorrow. doing a 16cubic ft box tuned at 35hz for 4 15"s off 1 AQ 2200d at 1ohm. In this video for the first time i got some windshield flex!! Using an MTX re-q to clean up the signal and add the missing bass that gets taken out when you turn up factory head units....works amazingly well. 8v pre-out to the sub. Subs are wired down to .5ohms, amp takes it like a champ....but the subs on the other hand don't take the power like a champ. Still gets loud and low though. Enjoy. Any questions just ask!