Could use a lot of improvements

Great that you can add in other woofer specs but crappy that you cant calculate real boxes. I enter in a JL 10w1 and choose build a box and it tells me to make one 33" wide for one 10" woofer. I change that to Custom box and still no way to customize the box.
It should allow you to enter in cubic size you want as well as 1 or more dimensions and then IT calculates the other dimensions. The way it is you have to enter in all box dimensions, kinda pointless without that option.

Red Death 78 about Kicker U