Box is good, had jamcllw get the proper air volume and dimensions for that sub. I have sub preouts on my head unit and low pass on or off on the hu after digging into the manual. I have talked to jabatram and we agreed the best way is to hook the alpin to the hu preouts, set the correct settings on the amp. and bridged the 2 channels to each coil. Gonna give that a try. I would get a better amp, but no money so that's not an option.
I'll let ya know how it goes. Thanks guys.