TL help please

Sashi · 6th April 2006, 11:07 AM

Hi all,
would like to try out a folded tapered TL for a driver I have wih the fol specs.
Qes-0.76 Qms-3.736 Qts-0.632
Fs-47Hz Vas-16Litres Sd-125cm^2
Le-0.89mh Re-6.6 BL-6.3

By reading the alignment table article by MJK I came at an initial enclosure geom which is as follows.
L=60" Driver Offset=10" S0=3.5Sd SL=0.7Sd
Den=0.5(initial 2/3rds.)
I modelled it in the TL Offset sheet but I'm not too good at the graphs and the Mathcad sheets as well.So could you plz help me out?Will the enclosure geom work?I'm thinking of crossing it over at say 150Hz to a midrange and tweeter,for a 3way system.
Thanks.

Tomac · 6th April 2006, 03:19 PM

It seems ok, but I doubt that you'll need that amount of damping. I think 0.25-0.35 will do it. Anyway, you try and report us.
The sim seems fine.

Sashi · 7th April 2006, 10:44 AM

Thanks for checking out,Tomac.Do you believe further optimizatiion is possible?And what about MLTL?Will the high Qts value play spoilsport?
Thanks.

Tomac · 7th April 2006, 11:03 AM

Depends on what you strive for and the room you plan to use them in. I would stick with original design. I don't have much experience with MLTL, so you should ask someone else about it.

GM · 7th April 2006, 07:01 PM

Greets!

Looks good to me, especially considering a 150 Hz XO point.

Running the numbers in a straight MLTL, it's larger and sims 'close enough' to MJK's design, so no reason to switch IMO.

For my records, which driver/model is this?

GM

Sashi · 8th April 2006, 09:17 AM

Thanks for the encouraing replies.Seems safe enough to take the plunge now.
The drivers are of an Indian brand,Bolton(16IMW22),btw.
Thanks again.

GM · 8th April 2006, 02:38 PM

Greets!

You're welcome! Please let us know how it works out in case anyone with access to this driver is interested.

GM

6th April 2006, 11:07 AM	#1
Sashi diyAudio Member Join Date: Jan 2004 Location: India	TL help please Hi all, would like to try out a folded tapered TL for a driver I have wih the fol specs. Qes-0.76 Qms-3.736 Qts-0.632 Fs-47Hz Vas-16Litres Sd-125cm^2 Le-0.89mh Re-6.6 BL-6.3 By reading the alignment table article by MJK I came at an initial enclosure geom which is as follows. L=60" Driver Offset=10" S0=3.5Sd SL=0.7Sd Den=0.5(initial 2/3rds.) I modelled it in the TL Offset sheet but I'm not too good at the graphs and the Mathcad sheets as well.So could you plz help me out?Will the enclosure geom work?I'm thinking of crossing it over at say 150Hz to a midrange and tweeter,for a 3way system. Thanks. __________________ Let There Be Music.

7th April 2006, 10:44 AM	#3
Sashi diyAudio Member Join Date: Jan 2004 Location: India	Thanks for checking out,Tomac.Do you believe further optimizatiion is possible?And what about MLTL?Will the high Qts value play spoilsport? Thanks. __________________ Let There Be Music.

7th April 2006, 07:01 PM	#5
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Greets! Looks good to me, especially considering a 150 Hz XO point. Running the numbers in a straight MLTL, it's larger and sims 'close enough' to MJK's design, so no reason to switch IMO. For my records, which driver/model is this? GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

8th April 2006, 09:17 AM	#6
Sashi diyAudio Member Join Date: Jan 2004 Location: India	Thanks for the encouraing replies.Seems safe enough to take the plunge now. The drivers are of an Indian brand,Bolton(16IMW22),btw. Thanks again. __________________ Let There Be Music.

8th April 2006, 02:38 PM	#7
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Greets! You're welcome! Please let us know how it works out in case anyone with access to this driver is interested. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.


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6th April 2006, 03:19 PM	#2
Tomac diyAudio Member Join Date: Dec 2003 Location: Zagreb	It seems ok, but I doubt that you'll need that amount of damping. I think 0.25-0.35 will do it. Anyway, you try and report us. The sim seems fine.

7th April 2006, 11:03 AM	#4
Tomac diyAudio Member Join Date: Dec 2003 Location: Zagreb	Depends on what you strive for and the room you plan to use them in. I would stick with original design. I don't have much experience with MLTL, so you should ask someone else about it.

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