IXL 12 Box Question

[acschank 0]

The site lists 1.8 cu.ft. for the IXL 12 SL. I am assuming this is for either home or car use, so would a box approximately 1.52 ft3 with pollyfill be adequate?

More specifically my dimensions are:

17"x15.5" top/bottom

15.5"x11.5" r-side/l-side/inner baffle

17"x13" front/back

internal: 15.5"x14.75"x11.5"

This is attempt number 2 for a box.

I needed some mdf for door speaker baffles and had to buy a whole sheet so I figured out all the numbers for a 1.35 cu.ft. box because thats what i remebered and had it cut at lowes today (actually I have enough for 2 boxes that size). I got home to make sure i remembered right, and of course 1.35 is for the icon, the other sub I was thinking about. At least I didn't get charged any cut fee, and the guy working the saw was real good. I hope the guy tomorrow is that good.