Hows this box look for my SDC2.5?

[spade914]

http://i3.photobucket.com/albums/y66/Skitz914/subbox.png

DJ recommended around 2 cubes at 38, and I whipped this up.

This is my first box, and I've head mixed things about RE's calculator in the past, so I was looking for some other opinions before I pulled the trigger on it.

[revrider1]

What size sub?

[spade914]

Sorry. A single 12.

[revrider1]

Thats bout right for the size. To be honest, I dont trust REs calculator also... IDK why...