Box for Fi SSD 15

[Cox]

So i have to decided to go with the 15. I have come up with a box with 3.004f^3 after displacement. Its tuned to 33hz. But I'm always open to new ideas just in case someone can come up with something better (im positive they can). Any way my max height is 12.5, width 35, and depth is 18. I know its not much to work with but like i said if anyone has an idea they want to share please do. My design will be below.

http://i45.tinypic.com/2hgu8a8.png

http://i50.tinypic.com/2jciyph.jpg