Hey guys, I was wondering if anyone could help me out with my 2nd build and had box specs for these subs. I will be running one off a dd m2b wired down to 1 ohm. I wanna tune my box to either 28 or 30 Hz, because this will be a daily app. This box has to fit in pontiac g6, so that dimensions have to be around 13H x 28 W x 18 D (I believe, I have to double check). I'm going to use 3/4" birch. Thanks guys.