My first speaker builds - Thanks for the help

stuartdj_x · 14th October 2005, 06:31 AM

I've been lurking around diyAudio for nearly a year trying to absorb some information about speaker building. I finally worked up the nerve to stop reading and just start building! Here are the results. The first set was based on Zaphs tangbands and the second were kind of a combination of several thoughts/speakers..... If you regularly post on this site, thanks again, lots of good info for us "newbs".

http://www.geocities.com/stuartdj_x/Speaker3.html

bowdown · 14th October 2005, 09:10 AM

Hey stuartdj_x just thought id say you have done quite a good job for your first time. Keep it up mate.

Regards

Bowdown

zei · 14th October 2005, 09:16 AM

Nice work. those curved cabinettes lookes great!
I,m buiding about the same thing, but i use the Hi Vi 3" design from Zaph.

Also curved shaped like your.. slightly bigger and they are proberly going to be veneered with Jacaranda.

I only have 2 pictures so far, and my skills in Photo are not very good.. but here they are.

I used antoher approch to getting it curved.. as you can see from the images..

zei · 14th October 2005, 09:18 AM

Second image

DirkD · 14th October 2005, 02:28 PM

Hi there

Nice work! Please let me in on the secret of how to determine the internal volume of a curved box. I want to do some ProAc 2.5 clones with a curved box.

Dirk

Masuji · 14th October 2005, 03:19 PM

Quote:

Originally posted by stuartdj_x
I've been lurking around diyAudio for nearly a year trying to absorb some information about speaker building. I finally worked up the nerve to stop reading and just start building! Here are the results. The first set was based on Zaphs tangbands and the second were kind of a combination of several thoughts/speakers..... If you regularly post on this site, thanks again, lots of good info for us "newbs".

http://www.geocities.com/stuartdj_x/Speaker3.html

LOOKS GREAT !

I love those TB w3-871s units, I made myself a 5.0 HT set .
(see somewhere else on this great forum)

But can You tell me how You greated the filter for Your mains ?
I like to try also with two TB's in one cabinet.

joensd · 14th October 2005, 03:32 PM

Quote:

But can You tell me how You greated the filter for Your mains ?

You´d have to roll one of the drivers off to avoid high frequency lobing.
Jim Griffin did it different to CSS; see graphic.
Can´t remember from whom I got it so no guarantees.

greets

tade · 17th October 2005, 02:57 AM

just incredible work!

David Gatti · 17th October 2005, 04:17 AM

That's fantastic work Stuart !
What method did you use to attach the veneer?

stuartdj_x · 19th October 2005, 06:26 AM

"Nice work! Please let me in on the secret of how to determine the internal volume of a curved box. I want to do some ProAc 2.5 clones with a curved box."

No secrets really. I used Microsoft Excel to determine the x,y coordinates for 1/2 the cross-section (looking down on the speaker) and then used the trapazoidal rule to estimate the area under the curve. I would also venture to guess that some of the free CAD software out on the net might also do this except easier?...maybe Turbo-Cad? I'm not sure though....

But can You tell me how You greated the filter for Your mains ?

Jens was on top of it. I found the same filter info he posted on this forum and I chose to use the CSS version

That's fantastic work Stuart ! What method did you use to attach the veneer?

Thank you again for the kind words! I used contact cement and a whole lotta patience....

14th October 2005, 06:31 AM	#1
stuartdj_x diyAudio Member Join Date: Sep 2004 Location: Tex	My first speaker builds - Thanks for the help I've been lurking around diyAudio for nearly a year trying to absorb some information about speaker building. I finally worked up the nerve to stop reading and just start building! Here are the results. The first set was based on Zaphs tangbands and the second were kind of a combination of several thoughts/speakers..... If you regularly post on this site, thanks again, lots of good info for us "newbs". http://www.geocities.com/stuartdj_x/Speaker3.html

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14th October 2005, 09:10 AM	#2
bowdown diyAudio Member Join Date: Feb 2004 Location: Perth	Hey stuartdj_x just thought id say you have done quite a good job for your first time. Keep it up mate. Regards Bowdown

14th October 2005, 02:28 PM	#5
DirkD diyAudio Member Join Date: May 2004 Location: Paarl, South africa	Hi there Nice work! Please let me in on the secret of how to determine the internal volume of a curved box. I want to do some ProAc 2.5 clones with a curved box. Dirk

17th October 2005, 02:57 AM	#8
tade diyAudio Member Join Date: Feb 2005 Location: Ralieigh nc	just incredible work!

17th October 2005, 04:17 AM	#9
David Gatti diyAudio Member Join Date: Mar 2004 Location: Melbourne, Australia	That's fantastic work Stuart ! What method did you use to attach the veneer?

19th October 2005, 06:26 AM	#10
stuartdj_x diyAudio Member Join Date: Sep 2004 Location: Tex	"Nice work! Please let me in on the secret of how to determine the internal volume of a curved box. I want to do some ProAc 2.5 clones with a curved box." No secrets really. I used Microsoft Excel to determine the x,y coordinates for 1/2 the cross-section (looking down on the speaker) and then used the trapazoidal rule to estimate the area under the curve. I would also venture to guess that some of the free CAD software out on the net might also do this except easier?...maybe Turbo-Cad? I'm not sure though.... But can You tell me how You greated the filter for Your mains ? Jens was on top of it. I found the same filter info he posted on this forum and I chose to use the CSS version That's fantastic work Stuart ! What method did you use to attach the veneer? Thank you again for the kind words! I used contact cement and a whole lotta patience....

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