Do you use WinISD to design loudspeakers?

[thermonuclear]

I'm sure this is a stupid question but do you guys use WinISD to design loudspeakers other than subwoofers? I guess what is confusing to me is that the frequency response on WinISD does not go up to the higher frequencies.
I want to make a set of speakers out of 4 6" 16ohm drivers and some Apex Jr tweeters to go with my subwoofer. I can't find any plans for the particular Cerwin Vega 6" drivers I have anywhere so I guess I have to start from scratch.

Any help would be appriciated.

[Rademakers]

The model that WinISD uses is only accurate up to 200- 300 Hz.

Mvg Johan

[thermonuclear]

is there another modeling software that is useful in designing an enclosure for full range speakers? How do you guys know how big to build the enclosure for an M T M setup?

[jomor]

in simple words, the enclosure determines the freq response up to 200 or 300 Hz, the rest response is determined by the driver's and the crossover.
The last one must take in consideration the baffle's width, and the driver's freq response (both magnitude and phase, as they re formed on the specific enclosure.

Thus you need a measurement/simulation program like Speaker Workshop which is free or something more powerful like Calsod & Praxis. You CANT caclulate
the crossover using the standard calculators, to get valid results you need to measure and simulate, for the frequencies above 200Hz. You can use WinISD below 200Hz for closed or vented enclosures. If you re aiming on a horn design, Winisd is not useful.

[Gavin_mi]

under file -> options you can change the viewed frequencies on the graph in winISD but, as was stated you can clearly see that it is wrong above about 300hz. that is also the reason none of the drivers in the list are tweeters

GL
Gavin

[synergy]

WinISD PRO has a revised model which takes into account how the inductance affects the top end

play about with the Le values and see what happens...

[Svante]

No, I don't.

Hint:

[youyoung21147]

The most accurate softs I have ever seen for modeling enclosures are Martin J.KING MathCad worksheets.

You can model an enclosure with really precise dimensions, such as the driver's place, and the port position. Variable damping is also possible to model, up to 1kHz.

I use this to model transmission lines, it works amazingly well !

www.quarter-wave.com