wall port area

[steve volz]

what should port area be on a wall thats 17cubes before displacement? its going to hold 4 15s. the box is 39wide 33high 28deep

[Joe X]

what should port area be on a wall thats 17cubes before displacement? its going to hold 4 15s. the box is 39wide 33high 28deep

That's actually going to depend on the subs and tuning frequency.

[john253a]

more info is required,

what subs?

amp?

power?

what do you want it tuned to?

what do you want to achieve?

another thing i think you have forgotten,

unless you use 3/4mdf you will not fit 2 subs high in 33"

and 3/4" will not cut it, youll need at least 1" if not 1.5"

39" wide minus 32" for subs, only leaves you 7", minis port walls leaves you with 1-6" (depending on wall thickness) witch is not enough youll need at least 7x30 or 7x31.5 if not 8" wide

[steve volz]

subs r gonna b americanbass xfls power will b between 4 and 6k and i want to tune about 32hz the box is going to b double 3/4" plywood on the front and 2x4 braces tieing everything together and of course everything will b glassed

[bkolfo4]

With a 39 x 33 baffle, you are going to be limited to less than optimal port area. Looks like you might squeeze a 36" x 5" port in there.

Maybe you can angle the top and bottom in towards the subs to gain a little more area.

[Joe X]

About 220 -240 square inches of port area.