Building a box, need port measurements ?


New member
Username: Delete

Post Number: 3
Registered: Sep-05
got 2x 12" soundstream t4 subs. more technical stuff on the link below...

measurements of the internal box : height - 13", depth - 16", length - 33"

which is 4 cubic ft.

vent tuned to around 30hz if its possible

going to have the slot vent in the middle with the t4 sub on each side of the slotted vent.

can anyone find out measurements for the vent from the box measurements provided ?


New member
Username: Tooloudforyou

Post Number: 6
Registered: Aug-08
40 sq inches of port = 22.72"long
50 sq inches of port = 29.09" long
60 sq inches of port = 35.52" long

i recommend using 60 square inches of port area....but the choice is up to you and the ammount of room you have.

you have to add this to the 4 cubic feet of Not just place a port in the design, your box is going to be bigger the 4 cubic feet with this port.

New member
Username: Delete

Post Number: 4
Registered: Sep-05
ok ive chanegd my setup.

i want one t4 sub in a slot port.

box - h13", d13", L31"

tunned to 30hz if possible .

port measurements please ?
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