OK, I need a box about 2 cubes per sub, 2 subs, separate chambers.This is what I came up with, just wanted to make sure my demensions were right. Front and back: 32.25x16.5 Sides and Center divider: 16x15 Top and Bottom: 16x30.75 Are these demensions alright, so as all the peices will fit propperly? I'm pretty sure I did my math right, just double checking. Thanks.