I saw so many questions on here about these speakers and couldnt find 2 that said the same thing lol.. I want to build a box for 2 kicker cvr 12's (07cvr124) 4 ohm dvc each. Wanting to build a ported box. Im hung up on finding the specific air space that is needed PER speaker and the frequency to tune the box, with this info and the RE Audio enclosure calculator i can get started on this box, any help is appreciated 