ML-TQWT spreadsheet?

tubee · 6th October 2007, 08:36 AM

My very old empirical on ear adjusted ML-TQWT need to be replaced.

I want to design a d'Appolito ML-TQWT with two Peerless HDS exclusive mid-woofers and a B&G ribbon tweeter in dipole. How do i handle the TSP with 2 drivers in one enclosure, Vas, Qts, Qm divided by 2?

I have a TQWT excel spreadsheet to calculate it. Have been searching for a spreadsheet to design a ML-TQWT, anyone know one?

Thanks

Scottmoose · 6th October 2007, 08:58 AM

Using Martin King's MathCad worksheets might be a better start. They do cost $25, but you get the set, and they are accurate, which is more than can be said for the few TQWT sheets for Excel that are lurking around.

Wired in parallel, Vas & Sd double, Re & Le /2. In series, Vas, Sd & & Bl double, everything else remains ~constant.

tubee · 6th October 2007, 12:48 PM

Thanks for reply scotmoose , good tip. Are the mathcad files also working on linux ubuntu? (i have installed Maxima, for the same purpose as mathcad.)

Scottmoose · 6th October 2007, 05:12 PM

Honest answer, I haven't a clue, knowing nothing at all about Linux. If the software can run MathCad files, then it should be able to run the worksheets. That's all I can tell you I'm afraid.

djQUAN · 6th October 2007, 05:45 PM

tubee,

I've been looking for that TQWT spreadsheet for quite a while now, if it's not too much to ask, could you please send it to my email? thanks in advance!

djquan128 (at) hotmail (dot) com

Scottmoose · 6th October 2007, 06:09 PM

Word of warning, if it's a Weems based sheet, it won't work very well.

tubee · 7th October 2007, 05:13 AM

djQuan, just google and i found it. Do you want the inch or metric version? Anyway, just sent them.

tubee · 7th October 2007, 05:15 AM

Scottmoose: I can ask somewhere around on the specialists if it will work on Linux. I have on old laptop w2k for kids-games, but i like linux a lot more, also because win cannot find the network card!

djQUAN · 7th October 2007, 07:04 AM

@ tubee

got them. thanks very much!

tubee · 10th October 2007, 05:46 PM

Maybe it's better to choose a TL instead of a ML TQWT, less boomy freq response/ flat response with slow roll off to low frequencies

6th October 2007, 08:36 AM	#1
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	ML-TQWT spreadsheet? My very old empirical on ear adjusted ML-TQWT need to be replaced. I want to design a d'Appolito ML-TQWT with two Peerless HDS exclusive mid-woofers and a B&G ribbon tweeter in dipole. How do i handle the TSP with 2 drivers in one enclosure, Vas, Qts, Qm divided by 2? I have a TQWT excel spreadsheet to calculate it. Have been searching for a spreadsheet to design a ML-TQWT, anyone know one? Thanks __________________ Daisy Bell

6th October 2007, 12:48 PM	#3
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Thanks for reply scotmoose , good tip. Are the mathcad files also working on linux ubuntu? (i have installed Maxima, for the same purpose as mathcad.) __________________ Daisy Bell

7th October 2007, 05:13 AM	#7
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	djQuan, just google and i found it. Do you want the inch or metric version? Anyway, just sent them. __________________ Daisy Bell

7th October 2007, 05:15 AM	#8
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Scottmoose: I can ask somewhere around on the specialists if it will work on Linux. I have on old laptop w2k for kids-games, but i like linux a lot more, also because win cannot find the network card! __________________ Daisy Bell

10th October 2007, 05:46 PM	#10
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Maybe it's better to choose a TL instead of a ML TQWT, less boomy freq response/ flat response with slow roll off to low frequencies __________________ Daisy Bell


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6th October 2007, 08:58 AM	#2
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	Using Martin King's MathCad worksheets might be a better start. They do cost $25, but you get the set, and they are accurate, which is more than can be said for the few TQWT sheets for Excel that are lurking around. Wired in parallel, Vas & Sd double, Re & Le /2. In series, Vas, Sd & & Bl double, everything else remains ~constant.

6th October 2007, 05:12 PM	#4
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	Honest answer, I haven't a clue, knowing nothing at all about Linux. If the software can run MathCad files, then it should be able to run the worksheets. That's all I can tell you I'm afraid.

6th October 2007, 05:45 PM	#5
djQUAN diyAudio Member Join Date: May 2004 Location: manila	tubee, I've been looking for that TQWT spreadsheet for quite a while now, if it's not too much to ask, could you please send it to my email? thanks in advance! djquan128 (at) hotmail (dot) com

6th October 2007, 06:09 PM	#6
Scottmoose diyAudio Member Join Date: Mar 2005 Location: UK	Word of warning, if it's a Weems based sheet, it won't work very well.

7th October 2007, 07:04 AM	#9
djQUAN diyAudio Member Join Date: May 2004 Location: manila	@ tubee got them. thanks very much!

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