Round radiating tweeter, aka "Enterprise 1" tweeter! - Page 4

rho · 27th June 2006, 08:28 PM

Quote:

Originally posted by tubee
Rho, is it matt spray, Motip/Duplicolor?

It's not a spray-can. I'll have to look up the exact type and brand.

tubee · 2nd November 2006, 07:44 PM

Finished the stands, simple made from MDF and PVC rain drainage tube. They will be filled with dry sand. In back tube is a small pipe to put speaker wiring through.
http://img529.imageshack.us/img529/4...tstand2ux8.jpg

tubee · 2nd November 2006, 07:50 PM

Spasticteapot · 2nd November 2006, 09:33 PM

Anyone know how well this would work with the ApexJr ribbon tweeter? If I'm not mistaken, this would lower the efficiency, but eliminate the "beaming" commonly found with ribbons. Seeing as how they're very efficient and cheap, this might work pretty well.

I'm tempted to try making some of these - I, however, would use lost-wax casting instead. Much easier to make multiples.

tubee · 3rd November 2006, 09:33 PM

Nice this cheap ribbon Spasticteapot! Its a pitty i don't live in the us, otherwise would try some.

This ribbon is constructed circular, so horizontal placed and a dispersion cone above it should give same results as with a dome i assume. For the price i would simply give it a try.

For a new main speaker i am thinking of a BG Neo 3 and with a cone on the back, working as dipole. Working with 2 long cone excusion paper woofers in d'Appolito in an ML TQWT, don't know the make, but from Canada. Series filtered. As we say in Holland: All this keeps you from the street!

tubee · 4th November 2006, 08:46 PM

Here is the canadian speaker ment.

http://www.creativesound.ca/details.php?model=WR125S

Small, so good midrange, and special voice coil construction for larger cone excursion.

Spasticteapot · 4th November 2006, 09:01 PM

Quote:

Originally posted by tubee
Here is the canadian speaker ment.

http://www.creativesound.ca/details.php?model=WR125S

Small, so good midrange, and special voice coil construction for larger cone excursion.

I was about to trade for a pair of those myself. I need new bookshelf speakers.

tubee · 5th November 2006, 05:36 PM

Hi Spasticteapot

This speaker has relative high Qts of 0.61, so a small bookshelf speaker is not very suitable to build with this unit.
A small cabinet (+/- 7 litre) is possible though with a coupling cap of specific capacity before unit
More ideal a bigger cabinet and Transmission line (lower f -3dB) I just read an article about this unit in Hobby Hifi, a german magazine.

tubee · 13th May 2007, 08:54 AM

Better photo in close up

tubee · 13th May 2007, 09:03 AM

A perfect tweeter for this task is the new Dayton ND20FA-6
http://www.partsexpress.com/pe/showd...number=275-030

I had to lathe the tweeter i used (Monacor car audio tweeters)
For the Dayton it is not neccesary anymore. (But Dayton's dome is slightly recessed in a small horn compared to my used tweeters)

2nd November 2006, 07:44 PM	#32
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	stands ready Finished the stands, simple made from MDF and PVC rain drainage tube. They will be filled with dry sand. In back tube is a small pipe to put speaker wiring through. http://img529.imageshack.us/img529/4...tstand2ux8.jpg __________________ Daisy Bell

2nd November 2006, 07:50 PM	#33
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	picture of center __________________ Daisy Bell

3rd November 2006, 09:33 PM	#35
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Nice this cheap ribbon Spasticteapot! Its a pitty i don't live in the us, otherwise would try some. This ribbon is constructed circular, so horizontal placed and a dispersion cone above it should give same results as with a dome i assume. For the price i would simply give it a try. For a new main speaker i am thinking of a BG Neo 3 and with a cone on the back, working as dipole. Working with 2 long cone excusion paper woofers in d'Appolito in an ML TQWT, don't know the make, but from Canada. Series filtered. As we say in Holland: All this keeps you from the street! __________________ Daisy Bell

4th November 2006, 08:46 PM	#36
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Here is the canadian speaker ment. http://www.creativesound.ca/details.php?model=WR125S Small, so good midrange, and special voice coil construction for larger cone excursion. __________________ Daisy Bell

5th November 2006, 05:36 PM	#38
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Hi Spasticteapot This speaker has relative high Qts of 0.61, so a small bookshelf speaker is not very suitable to build with this unit. A small cabinet (+/- 7 litre) is possible though with a coupling cap of specific capacity before unit More ideal a bigger cabinet and Transmission line (lower f -3dB) I just read an article about this unit in Hobby Hifi, a german magazine. __________________ Daisy Bell


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2nd November 2006, 09:33 PM	#34
Spasticteapot diyAudio Member Join Date: Jan 2006 Location: Wisconsin....what did you expect?	Anyone know how well this would work with the ApexJr ribbon tweeter? If I'm not mistaken, this would lower the efficiency, but eliminate the "beaming" commonly found with ribbons. Seeing as how they're very efficient and cheap, this might work pretty well. I'm tempted to try making some of these - I, however, would use lost-wax casting instead. Much easier to make multiples.

13th May 2007, 08:54 AM	#39
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	Better photo in close up __________________ Daisy Bell

13th May 2007, 09:03 AM	#40
tubee diyAudio Member Join Date: Jul 2004 Location: Netherlands	A perfect tweeter for this task is the new Dayton ND20FA-6 http://www.partsexpress.com/pe/showd...number=275-030 I had to lathe the tweeter i used (Monacor car audio tweeters) For the Dayton it is not neccesary anymore. (But Dayton's dome is slightly recessed in a small horn compared to my used tweeters) __________________ Daisy Bell

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