ok here goes we have the box made (except for the ports) it's 19.3 cuft after dis. for subs(3 18 btl fully loaded)and bracing, i still need to make the ports........just to give you guys an idea first i cant make just 1 large slot port would have to be 3 at most (med. size ports)and i would like to tune it around 33-35hz oh and the ports would be facing the same way as the subs it's somewhat of a wall/slant design any help would be highly appricated ............................. thanks ahead of time...........................

can anyone help me out

19x12=228

Use 228 sq inches of port.

If you're gonna use 2 ports, halve the volume of the enclosure and figure port length based on two separate spaces. If you want to use 3 ports, figure length based on 1/3 of volume.

Edited August 14, 200718 yr by dopey

19x12=228

Use 228 sq inches of port.

what will that tune the box too?