Thiele/Small parameters for 2 drivers in series.

[matteisspeakers]

I want to put 2 Jordan Eikona drivers in series in a mltl enclosure. I want to work out the port length but don't know what to enter for the Thiele Small parameters. Can anyone help please?

 

[Sonce]

Double the Vas. Qts is the same.

 

[Scottmoose]

I'd be a bit wary of that with a unit as large as the Eikona unless you're planning on low-passing one. Be that as it may, series connection:

Vas, Sd, Re, Le & B*L all double.

 

[David McBean]

Sd, Re, Vas and Le double.

fs, Qes, Qms and Qts stay the same.

 

[matteisspeakers]

Result. Thanks guys. Much appreciated.

 

[SamAnytime]

If I want to model a fictitious driver based on an existing driver, and want to increase the area to 1.5 times, how will the other parameters change from those of the existing driver? I can't just multiply everything by 1.5, can I? Just want to explore the effect of a slightly larger driver on the design, without actually searching for and selecting a larger driver.

 

[stijena1973]

I want to put 2 Jordan Eikona drivers in series in a mltl enclosure. I want to work out the port length but don't know what to enter for the Thiele Small parameters. Can anyone help please?

Look at the last page of this doc.

http://www.artalabs.hr/AppNotes/ARTA Handbook Version 2.4 English.pdf

 

[GM]

I can't just multiply everything by 1.5, can I?

No, easiest nowadays to plug the T/S specs in Hornresp, save, then change [Sd], click on it to open the Driver Parameters to see corrected specs.

GM

 

[SamAnytime]

No, easiest nowadays to plug the T/S specs in Hornresp, save, then change [Sd], click on it to open the Driver Parameters to see corrected specs.

GM

Does this work the other way too? I want to split the output of a driver into several identical ducts/horns that will eventually recombine at the mouth.