PORT AREA FOR 2 18" BLs

[soundmekanixdan 0]

Building a wall for 2 x 18" BL's in my Ford Focus ZX4, as it stands now we've got 10.5 cubes per sub, my questions is how much port do i need? how much port surface area etc. etc. ????? Any help would be greatly appreciated. Thanks.

Dan

Soundmekanix SPL design Team

[soundmekanixdan 0]

keep in mind it is for bass race/daily booming so i need to be able to play music on it for extended periods of time.