Enclosure for Crites CW1526C 15" woofer

[mitchba]

Hi, I do not have any experience with programs such as WinISD Pro, but I am willing to learn.

I have a 3-way Bob Crites Cornscala Type C that I am happy with the sound quality. Some day I would like to add subs, but for now, I just want to learn more about calculating box volume based on these driver parameters that I got from Bob:

CW1526C cast frame. Replacement for the Klipsch K-33E used in Cornwall.

FS is 26.3, Re is 3.36, VAS is 506.3 Liters, BL is 12.49, QM is 9.93, QE is 0.27, QT is 0.26. Sensitivity is 97 db. Coil is 1 mH.

Pmax is 150 watts. Xmax is 7.15 mm, MMS is 75.5 grams, Cms is 0.486 mm/N

When looking at adding these parameters in WinISD Pro, I am confused that I have QE, but the program wants Qes, same goes for QT and QM.

Any assistance in pointing me in the right direction would be much appreciated.

Regards, Mitch

 

[PeteMcK]

QE = Qes etc...

 

[mitchba]

Thanks. Tried that and got several errors in WinISD. Then it seems that WinISD, running in compatibility mode, complains of divide by 0 and access violation errors.

Any suggestions other than WinISD Pro?

 

[PeteMcK]

Try Unibox: UniBox - Unified Box Model for Loudspeaker Design - Kristian Ougaard

 

[mitchba]

Thanks! Works perfect. Cheers.

 

[_henry_]

actually i just simulated the vented box for this for a guy in aussie based on your parameters , it works well for 165-195L