Dual 12" Type R Enclosure Assistance

[Josh Middleton]

Hey guys, so first post on here. But I've been lurking on here for a few months.

Im trying to design a box to fire toward the hatch of my 03 Ford Focus.

Im running 2 Alpine Type R 12" as 2ohms @ 1300W.

I have the dimensions of 20" H x 43" W X 23" D

Any help would be greatly appreciated. I can fabricate it myself, its just the design that has me confused.

[Joe X]

So here is a suggestion if you want everything firing back, power: to subs rated, amp subsonic filter to 28Hz, minimum port clearance 4", figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.

[Josh Middleton]

Thank you so much Joe. I appreciate it!