how do u really make a ported box, without guessing?

[lilwhteranger 2]

when i make enclosures all can make is sealed enclosures. but id like to start and learn how to make a ported enclosure. i kno theres alot that goes into making these awsome boxes. i want to know how do u kno where walls should go and how big ports should be. and basic stuff like that. this is my first ported box. i got a 10" jl w0 in a sealed box that im not using and wanna make a ported box for that. sounds great but i wanna learn how to make ported enclosures. so how do u do it without guessing? thanks.

[Tirefryr 1,742]

Head to JL's site; they have some great information on these things.

It's almost as simple as a sealed enclosure, but you have to figure in your vent size, tuning frequency, length, etc. . .

Do a google search and you'll find tons of good information. I would write something up here, but it would literally take all day.

[lilwhteranger 2]

oh ok. thanks. imma do sum research.

[1200 bandit 2]

Google subwoofer math a lot of good sites will come up, an good luck.

Edited June 6, 2009 by loud by design

[KU40 173]

I use the modeling program winISD. You can easily manipulate the port, enclosure size, etc., to see how the port dimensions and tuning change.

[3stagevtec 2]

the help files in WinISD have alot of useful info!