Cone tweeters?

Elbert · 10th June 2009, 08:24 PM

Cone tweeters used to be fairly common back when domes were stil somewhat exotic and expensive..

Does anybody know if there are any companies making "modern" quality hi-fi cone-tweeters today?

And why would I be interested?

Today, it seems that maximum dispersion and off-axis response is the way to go.

but why would one disperse the sound in all directions causing all sorts of early reflections?

I had a pair of rather large voight-horns with Coral flat 8 II's crossed over to a coral horn-tweeter at 7 khz. Not exactly a flat frequency response and probably a fair bit of distortion as well.. but those speakers were very dynamic and had great imaging. I strongly suspect that this was in part due to the directivity of the drivers used.

So perhaps a large "beaming" tweeter" (cone) isn't such a bad thing after all?

Opinions and advise velcome!

PS.

http://www.audiophysic.de/hhct/index_e.html

454Casull · 10th June 2009, 09:50 PM

Beaming doesn't have much to do with the shape of the diaphragm, given that it moves pistonically.

Elbert · 10th June 2009, 10:01 PM

True, true,

It is not the shape, but the size and the sonic velocity in the diaphragm material that dictates when beaming occurs. In theory, a 2" cone and a 2" dome will have the same directional characteristic if they are made from the same material.

But to my knowledge, dome tweeters that big seem to be even more rare than cone tweeters.. (?)

AKN · 10th June 2009, 10:26 PM

Quote:

Originally posted by Elbert

Does anybody know if there are any companies making "modern" quality hi-fi cone-tweeters today?

Hi Elbert,
Davis acoustics comes to mind.

Personally I'm very fond of my old JBL LE-26 tweeters.

Ron E · 10th June 2009, 10:45 PM

Peerless used to make a really nice one, but it is discontinued,

AKN · 10th June 2009, 11:22 PM

You mean this one?
I have a nos pair, sounds and measures good.

PeteMcK · 11th June 2009, 12:51 AM

Matsushita (Panasonic) make one that's good from 4KHz up, actually they seem to make a few good drivers, but they don't seem to be generally available, perhaps available as 'replacements'

Elbert · 11th June 2009, 10:56 AM

Ah!

Interresting..

Those Davis tweeters look like quite something!

Has anybody listened to these?
To bad the frequency plots and technical data on the Davis site is a bit minimal.
Obviously a bit on the expensive side, but then again, this looks like proper hi-fi components.

Looking at the spec's and the plots for that Peerless tweeter, I can't help but wonder where the drawback is hidden. Despite their diminutive and slightly cheap looks, the data and curves look very promising, if not to say impressive!

Wonder what their distrortion curves would look like?

4fun, have you ever used these in any application, or just tested them?

Perhaps I should try them my self if you have a pair up for grabs?

jerome69 · 11th June 2009, 11:03 AM

Quote:

Originally posted by Elbert
Those Davis tweeters look like quite something!

Has anybody listened to these?

I had a pair of TW 26K2F a long time ago. They sound good

http://www.davis-acoustics.com/fr/tw26k2f.htm#

oshifis · 11th June 2009, 11:07 AM

I used to have a pair of the French Audax TW-8B aluminium cone super tweeter, but this is also discontinued. Never heard anything comparable.

10th June 2009, 08:24 PM	#1
Elbert diyAudio Member Join Date: Mar 2008	Cone tweeters? Cone tweeters used to be fairly common back when domes were stil somewhat exotic and expensive.. Does anybody know if there are any companies making "modern" quality hi-fi cone-tweeters today? And why would I be interested? Today, it seems that maximum dispersion and off-axis response is the way to go. but why would one disperse the sound in all directions causing all sorts of early reflections? I had a pair of rather large voight-horns with Coral flat 8 II's crossed over to a coral horn-tweeter at 7 khz. Not exactly a flat frequency response and probably a fair bit of distortion as well.. but those speakers were very dynamic and had great imaging. I strongly suspect that this was in part due to the directivity of the drivers used. So perhaps a large "beaming" tweeter" (cone) isn't such a bad thing after all? Opinions and advise velcome! PS. http://www.audiophysic.de/hhct/index_e.html

10th June 2009, 09:50 PM	#2
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	Re: Cone tweeters? Beaming doesn't have much to do with the shape of the diaphragm, given that it moves pistonically. __________________ Building a 2.1 system out of a 3/4"x4'x8' sheet

10th June 2009, 10:45 PM	#5
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	Peerless used to make a really nice one, but it is discontinued, __________________ Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan Science is a way of thinking much more than it is a body of knowledge. --Carl Sagan

10th June 2009, 11:22 PM	#6
AKN Enjoy good sound diyAudio Member Join Date: Aug 2005 Location: In the middle of Sweden	You mean this one? I have a nos pair, sounds and measures good. __________________ / Anders

11th June 2009, 12:51 AM	#7
PeteMcK diyAudio Member Join Date: Feb 2002 Location: Sydney	Matsushita (Panasonic) make one that's good from 4KHz up, actually they seem to make a few good drivers, but they don't seem to be generally available, perhaps available as 'replacements' __________________ ‘today… there lives alongside the twentieth century the tenth or thirteenth. A hundred million people use electricity and still believe in the magic power of signs and exorcisms” Trotsky


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10th June 2009, 10:01 PM	#3
Elbert diyAudio Member Join Date: Mar 2008	True, true, It is not the shape, but the size and the sonic velocity in the diaphragm material that dictates when beaming occurs. In theory, a 2" cone and a 2" dome will have the same directional characteristic if they are made from the same material. But to my knowledge, dome tweeters that big seem to be even more rare than cone tweeters.. (?)

11th June 2009, 10:56 AM	#8
Elbert diyAudio Member Join Date: Mar 2008	Ah! Interresting.. Those Davis tweeters look like quite something! Has anybody listened to these? To bad the frequency plots and technical data on the Davis site is a bit minimal. Obviously a bit on the expensive side, but then again, this looks like proper hi-fi components. Looking at the spec's and the plots for that Peerless tweeter, I can't help but wonder where the drawback is hidden. Despite their diminutive and slightly cheap looks, the data and curves look very promising, if not to say impressive! Wonder what their distrortion curves would look like? 4fun, have you ever used these in any application, or just tested them? Perhaps I should try them my self if you have a pair up for grabs?

11th June 2009, 11:07 AM	#10
oshifis diyAudio Member Join Date: Mar 2004 Location: Budapest, Hungary	I used to have a pair of the French Audax TW-8B aluminium cone super tweeter, but this is also discontinued. Never heard anything comparable.

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