would half box volume work?

[Hayden]

I would like a smaller box I know the recommend volume is best but if I half the box volume on any sub wouldn’t that double the resonate frequency?
I haven’t a clue in this area so how does that work?


Some specs of the sub.
Qts: .234
Vas: 185.60
Fs: 21.40
Re: 2.050
Le: 3.25
Z: 4.00 ohm
Qms: 8.838
Qes: .240
Spl: 90.83
Bl: 31.41774
Dd: 42.62cm
Sd: 1426.0 cm2

 

[pinkmouse]

Download one of the many box modelling programs and have a play.

 

[Hayden]

I have winISD pro would that work?
I found this one http://www.geocities.com/f4ier/newsubsim.htm
How accurate is this? Or do you recommend a specific one?

 

[pinkmouse]

WinISD is fine, I prefer Unibox, but it's a little more complicated.

 

[Hayden]

Thanks for the info, I’ll do more research by reading and software and see what I come up with.

 

[Hayden]

Hi hate to say this but I don’t know much about the real technical terms of speakers but I loaded a soloX 18” into winISD PRO and set the sealed box at 2cuf it loses 3db around 10-20hz I have no idea but will this effect the sound that much?

To me I don’t understand the program because you add mass to the cone and you get a db rise over the frequency response doesn’t make sense to me.

I have limited space I can’t go much bigger than about 3cuf sealed or ported box
Will I lose much power?
The sub requires a 6 cu.ft. sealed and 5 cu.ft. ported

Any help will be greatly appreciated