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Old 14th October 2005, 07:31 AM   #1
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Default 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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Old 14th October 2005, 10:10 AM   #2
bowdown is offline bowdown  Australia
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Hey stuartdj_x just thought id say you have done quite a good job for your first time. Keep it up mate.

Regards

Bowdown
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Old 14th October 2005, 10:16 AM   #3
zei is offline zei  Sweden
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Thumbs up Nice work!

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..
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Old 14th October 2005, 10:18 AM   #4
zei is offline zei  Sweden
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Old 14th October 2005, 03:28 PM   #5
DirkD is offline DirkD  South Africa
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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
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Old 14th October 2005, 04:19 PM   #6
Masuji is offline Masuji  Netherlands
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Default Re: My first speaker builds - Thanks for the help

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.
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Old 14th October 2005, 04:32 PM   #7
joensd is offline joensd  Germany
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Quote:
But can You tell me how You greated the filter for Your mains ?
YouŽd have to roll one of the drivers off to avoid high frequency lobing.
Jim Griffin did it different to CSS; see graphic.
CanŽt remember from whom I got it so no guarantees.
Click the image to open in full size.

greets
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Old 17th October 2005, 03:57 AM   #8
tade is offline tade  United States
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just incredible work!
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Old 17th October 2005, 05:17 AM   #9
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That's fantastic work Stuart !
What method did you use to attach the veneer?
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Old 19th October 2005, 07:26 AM   #10
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"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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