what about this box design?

[Troopzz]

what do you think about that box? 2 skar vvx 12 crx style (subs up) port to the trunk in a hatchback, wired to 1 ohm on skar 1500.1D

does the box need some better calculating/design or is it a great box? bin very long time calculating this ,

http://i47.tinypic.com/2lcqj4i.png

[john253a]

this is how it should be filled out, try messing around with it like so

and idd tune it a bit higher then 30hz (im not saying what i have here either)

[Troopzz]

i have the skars vvx 12",,, they rape the lows, thats why i want it to handle the lows really good... is 30hz to low to get low n loud?