best port design for a walled enclosure

[matt a 0]

i am looking to build a wall in my envoy.... it will be a 4 15 woofer setup and i need a minimum of 16 cubes to make it epic..... what type of port do i need and i would like it to be tuned to about 38 hz but i mainly listen to rap so i am considering 32 hz as well...thank you

[Kanaworm$ 292]

Hit up JBLCamry here on the forum.