New member, starting sub design.

[MrKlinky]

I strongly suggest your first speaker to be a low Q sealed sub. You do want success on the first try?
That will get you to understand how to measure the driver, how to prototype the box, and then how to measure prototype in situ before building a nice box.

Bass horns are difficult and very big. You can play with tools like Hornresp.
http://www.hornresp.net/
As a hint, Klipsch used the room walls as the mouth of his horns.

Note: A low Q sealed sub blends into a room much better than a ported sub.

WHS ^^^ 100%.

Are you planning this as an engineering/academic exercise, a speaker to mimic the all-too-well-known limitations of 'club' subs (with their ghastly time-smearing energy storage), or to accurately reproduce low frequency sounds? Be honest, my good man! Further, is this a domestic or PA system, and what are your spl expectations?

 

[BP1Fanatic]

HR is the best modeling software on the planet, PERIOD!

 

[planet10]

Depends what you are doing.

dave

 

[BP1Fanatic]

Examples, other than more segments?

 

[planet10]

4 x SDX7 work well in my big room.

dave

 

[BP1Fanatic]

You tell us!

https://www.stereonet.com/forums/profile/103690-planet10/content/page/4/?type=forums_topic_post

 

[GM]

I've heard the MJK modeler mentioned on other forums. Is that totally defunct now? Is it worthwile reaching out to the designer to ask for the software?

Cheers

Yes. You can try, but knowing/'living' through the complete history........, so probably only if a current owner is willing to do some unscrupulous business behind closed doors..........

That said, his Classic TL Alignments freeware is chock full of info if reverse engineered that when combined with his other freeware docs can make one a TL/horn design expert.

Since you're math savvy and have some T/S, etc., background, your time might be better spent 'jumping into the deep end of the pool' or at least their bibliography's 😉:

D.B. Keele

Prof. Leach