Need Help and ideas
 

Hey Guys i have a Big problem, As it is i have 2 alpine R type 12" 2 ohm in a bassworx gloss seires. Now i'll soon be getting 2 more Rype 12" 2 ohms and plan on runing them (* all 4 *) with 2 MRD-M605's, Now heres my problem i need to make a new box (* most likely ported *) to fit them all in there. Now the Dimentions i have to deal with are 50"wide X 27'' Hight X 14'' 1/2'' Deep.
i would like the subs facing up so i thought of putting them all on top, But that would take up 48" leaving 1/4" on each side, But i was thinking of diving the box into 2 chambers/ 2 subs a chamber , Chould that Brace the top enought to hang 4 12's off of ?

Here is a picture i drew befor i figured out my idea was
Also i am including the Subs Data Sheet
Thank you for the help.

http://img261.imageshack.us/img261/5039/boxxxxpi2.png

that is not the box i would make
you have a pm