Cone tweeters?

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Elbert

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Joined 2008
#1
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
 
#3
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.. (?)
 
#8
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? 🙂
 
#11
Elbert said:

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? 🙂
Click to expand...

I've only measured and briefly listened to the Peerless tweeters, not used them in any setup.

For grabs? Maybe, first I must find them. 🙂
 
#12
Ron E said:
Peerless used to make a really nice one, but it is discontinued,
Click to expand...

One could also think of the 2" Peerless widebanders as low-efficiency tweeters that can also be used quite low. The similar Aura drivers, by contrast, are inverted domes. (The difference, as I see it, is that a cone is driven from the center, whereas a dome is driven from the edges.)
 
#13
Anders,

if you happen to stumble across those tweeters, let me know if you would like to part with them for a reasonable sum.. 😉

What sort of measurements did you perform by the way?


Hmm, those Audax tweeters looked interesting. The recommended x-over point of 5k is regrettably just to high for my intended application.

Been looking at some of the small wide-band/ fullrange drivers, but they all seem to fall through on efficiency, I need something at around 90 dB W/m..

Thanks for the report on the Davis' Jerome. Did you notice any distinct negative or positive differences from "conventional" tweeters, or were they simply good sounding as any good quality tweeter irrespective of diaphragm principle?
 
#15
Anders,

I did a quick read up on the JBL tweeters at Troels Gravesens web-page, very interresting reading!

If you find the Peerless tweeters and are able to do a distortion test, that would really be great.

If the distortion measurements come out good, these tweeters are starting to look like an interesting alternative.. too bad they don't come with "object-of-desire" cast frame and a shiny phase-plug! 😀
 
#16
It was about ten years, I heard the Davis TW26K2F and I can't remember in details. They seemed to have a less good dispersion and less go up in high frequency than a dome tweeter. For these reasons, i didn't keep them.
Now with measurement tools, it should be for me an other story.
 
#17
4fun said:
You mean this one?
I have a nos pair, sounds and measures good.
Click to expand...
YES.

Elbert said:
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!
Click to expand...

These were used in a well regarded speaker (Spica Angelus) and they are sometimes sought after by Angelus owners who have a problem controlling their volume 😉 Probably worth some $$ to the right person.
 
#19
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