port length help....

[lowhzdime]

if i have 16 cubes net and have 2 ports that are 6"x10" how long should they be to tune to 35 hz

[lowhzdime]

any help???

[OrionStang]

If your talking round ports, use Torres calculator. If they are flared, I find the desired freq, and add an inch for the flares. Also, two 6" ports is probably not enough area for a box that big. I got three 6" aeros in a 13 cube box.

[lowhzdime]

no i will be building them out of mdf it will be a rectangle i have room to put 2- 12"x7" ports one in each corner of my wall. i just cant figure out what length and size to make them.

[Tek]

Just do one port

[lowhzdime]

any reason for just doing one???

[Tek]

The more ports you have, the longer you need to make them to get low. Its a pain in the ass really

[lowhzdime]

so should i still port on top? drivers also passenger driver or middle?

im looking for just loud nothing meter wise for now.... ill wait for that for when the sa12s come in

[lowhzdime]

i also have enough 6" pvc if that would work better

[Torres]

The more ports you have, the longer you need to make them to get low. Its a pain in the ass really

not necessarily. if the port area remains the same, then the port length will also be the same.

the length should be right around 7.5" long to get that tuning. tho...that only gives you about 7.5 sq inches of port per foot. kinda low imo. you'd need something like 6 6" aeros at 12.5" long each to get a 35 hz tuning