I need help to build a custom box, I'm not sure on wat size to make my box to get the best use out of my subs... I have 2 audiopipe TXX-BDC2-12 an 2 boss ar2000m amps. Each sub on it's own amp. I'm goin to put them in a 2010 Dodge journey.. my plan is to make 2 separate boxes (easier to move around when space is needed) an leaningmore towards a sealed box. The box they are in has currently been blown apart an has to much damage to continue. I bought 3/4 mdf. I'm past budget already an dont wanna waste product. Attached are specs. Recommended sealed box is 1.5 to 2.0 cu. ft.