Need T/S For JBL E140?

[Loud & Clear]

I need some Thiele & Small's for a JBL E-140. I already have these: http://www.jblpro.com/pub/components/eseries.pdf But I need to know, CMS, RMS, and MMD. I guess that's about it. Perhaps there is a way to figure these values from the above info in the link above. I would appreciate the help. Many Thanks, Tom

[Hoerninger]

But I need to know, CMS, RMS, and MMD.

Once I grabbed this, don't know the origin (MMS = MMD).
Hope it helps.
___________
Regards
Peter

[Zilch]

I clicked the "Calculate All" button in BB6P, and here's the result:

[Y'all can argue about what's right.... ]

[Loud & Clear]

I clicked the "Calculate All" button in BB6P, and here's the result:

[Y'all can argue about what's right.... ]

Hey Zilch, Everything looks right. Did you have to do any hand calculations, or does the program you are running do it?

[Zilch]

"Hand calculations?"

Bwahahah!

[I just click stuff here, is all.... ]

[Loud & Clear]

"Hand calculations?"

Bwahahah!

[I just click stuff here is all.... ]

Now that is handy. Where would I locate that program? I've been hand calculating for hours. When I was in electronics. I did algebra, trig, geometery, calc, and boolean algebra. That has been awhile, I can't believe how much I have forgot. Can't even remember the key's on my calculator. I used to do math problems that would take me 2 day's, and 5 pages, and that is with my calculator. I even got some of them right . I believe the mmd is mms with out the air load. In other words, mmd is the weight of the diaphram? Thanks...

[Zilch]

Now that is handy. Where would I locate that program?

Bass Box 6 Pro by Harris.

http://www.ht-audio.com/default.htm

~$120 at Parts Express, less on occasional specials.

Other similar programs may offer like capabilities or better, even....

[Loud & Clear]

I am using the McBean simulator. Does anyone know if I can calculate rms, cms, mmd, from the basic T/S I have already programed into it? As alot of the JBL drivers do not have this information. I read something about it in the instructions. But I am new to the program, and was wondering... Thanks...

[Hoerninger]

I am using the McBean simulator. Does anyone know if I can calculate rms, cms, mmd, from the basic T/S I have already programed into it?

Hornresp by McBean ... click on the entry fields twice. Then you are asked for other parameters and the rest will be calculated.
____________
Regards
Peter

[Loud & Clear]

Hornresp by McBean ... click on the entry fields twice. Then you are asked for other parameters and the rest will be calculated.
____________
Regards
Peter

Thanks, I'll get the hang of it. There is a bunch of drivers I would like to simulate for the K-horn. The JBL E140 seems to lack a little at the real lower end, but it get's louder starting at about 55hz. At 90hz it's up 2.3db on the K33e. I guess thats fairly close to 3db. But it isn't really appreciable, but intersting none the less. The JBL 2225 is quite a close match I've noticed. I doubt a woofer will be found that is more efficient, and smooth as the one designed for the K-horn. But it's fun to check around...

[4313B]

Does anyone know if I can calculate rms, cms, mmd, from the basic T/S I have already programed into it? As alot of the JBL drivers do not have this information.

I built a complete spreadsheet back in 1990 with all the neato formulas and graphs. You can do the same if so inclined.

Here is a webpage that has some of the formulas you might be looking for. The usual suspects can be found in the reference section.

http://www.birotechnology.com/articles/mass.html

I haven't looked at it in years but Drew's spreadsheet might be a place to start.

http://www.drewdaniels.com/Audiotech.htm

[Loud & Clear]

I built a complete spreadsheet back in 1990 with all the neato formulas and graphs. You can do the same if so inclined.

Here is a webpage that has some of the formulas you might be looking for. The usual suspects can be found in the reference section.

http://www.birotechnology.com/articles/mass.html

I haven't looked at it in years but Drew's spreadsheet might be a place to start.

http://www.drewdaniels.com/Audiotech.htm

Look's like great information. I bookmarked them. Many Thanks...