Well I decided I'm gonna do a blow through in my truck, F150 single cab. It looks right now like the 4 15's is going to be my best bet. Now for the box, I dont want to cut a hole to big in my bed so it looks like a bandpass would be best. I have never build a bandpass so i need some help in the design. I was thinking two 15's facing each other with the center being ported into the cab. But I need to know if a 4th order or 6th order is going to be best for me? I Just want to belt out lows and just daily well. I want loud from 30-50hz. I have 51" in width, 18" tall, and 60" deep, with the port no larger than about 300" into the cab. anyhelp is appreciated.
