How to calculate an enclosure with variovent ?

[TomatoBangBang]

Hello everybody,

I have these 15" with these specs :




and i would like to construct an enclosure for them with some variovent

So i would like to know few things :

- the approximate size of the box
-the number of variovent per box
-if there is another way to reduce the size of the enclosure without going to the ported soluton

Thanx

[nigelwright7557]

Look up WinISD.
This is a program that will help you.

[Ron E]

Those woofers will not make any bass in a sealed box. Q is too low. If you want no bass, you can go as low as 15 Liters, for an F3 of ~160Hz. Variovents are not needed for this woofer to put it in a small box.

Personally I would think about 50-100Liter ported boxes tuned in the 40-50Hz range, or I would make some sort of Horn out of them. Bandpass might also be an interesting option.

What are you aiming for, what is the intended purpose?

[RJ]

Originally posted by TomatoBangBang
Hello everybody,

I have these 15" with these specs :




and i would like to construct an enclosure for them with some variovent

So i would like to know few things :

- the approximate size of the box
-the number of variovent per box
-if there is another way to reduce the size of the enclosure without going to the ported soluton

Thanx

Here's some info I've gathered over the years.
If I have time today I'll run them parameters through Win Isd.
http://aperiodic-enclosures.blogspot.com/

[RJ]

It doesn't look good or model well in WinIsd for Aperiodic loading.
Looks really good for a 4th or 6th order Bandpass, which probably means it'll also do well in a horn loaded design.