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Cone Tweeters
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Focal still uses concave tweeters (instead of dome/ribbon/horn).
Focal Aria 906 Speaker Review
This is a review and detailed measurements of the Focal Aria 906 Bookshelf/stand-mount speaker. It was kindly purchased by a member and drop shipped to me. I think it costs US $2000 for a pair but I see it on Amazon including Prime shipping for half that at US $999. Better yet, they have a...
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Mark Audio Viotti, for another.
Some older cars come with cone mid-high range on the dash pointing at windshield, with no tweeter. Bose in Infiniti FX is a recent example, 2.75-inch cone iirc, they call it Twiddler. Wonder if this configuration improves dispersion at high frequency.
knotscott
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Most cone tweeters are the cheaper paper types (like those found in portables, TVs, PC speakers). I've heard plenty of decent paper woofers, but can't recall hearing a good paper cone tweeter in a modern speaker.
Yeah... but they're not really cones, per se. They're just domes flipped inverted.Focal still uses concave tweeters (instead of dome/ribbon/horn).
Focal Aria 906 Speaker Review
This is a review and detailed measurements of the Focal Aria 906 Bookshelf/stand-mount speaker. It was kindly purchased by a member and drop shipped to me. I think it costs US $2000 for a pair but I see it on Amazon including Prime shipping for half that at US $999. Better yet, they have a...
They fell out of favor because the other options are better.
Only vintage JBL L100 used paper cone tweeters; the new ones have titanium domes.
Oh, you mean like a whizzer tweeter?
Lii Audio and Fostex still do some full range drivers with whizzer tweeters. The flagship would be https://voxativ.berlin/
These beam considerably (look at the Canon S-50 review here).
Chazz6
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Yup. From the Focal Aria 906 user manual: 1" (25mm) Al/Mg TNF inverted dome tweeter.
Aluminum/Magnesium alloy inverted dome TNF Tweeter : the tweeter developed for the Aria 900 range uses Focal exclusive inverted dome technology, for optimal energy transfer and limited directivity. The dome's Aluminum/Magnesium alloy guarantees outstanding stiffness and damping. The mechanical properties of the new suspension system using Poron, an open cell polyrethane microcellular foam, provide numerous benefits: excellent dimensional stability and no degradation over time. ... The tweeter mounting has an integral waveguide which maximises horizontal directivity and minimises diffraction.
There are several reasons why cone tweeters are not seen very much anymore:
0. back in the day, cones were all they had. Once they came up with the technology to create fabric or rigid metal domes, they basically started to dominate the markets. This is due to the following reasons (among others probably):
1. usually cones are larger than about 1", which means they will start beaming earlier than a dome. So off-axis, domes are usually better behaved.
2. a dome is usually more pistonic in nature at high frequencies. It has fewer deformation modes than a floppy cone. This means that a cone generates HF mostly by resonances, where a cone relies more on nice pistonic movement to generate the same frequencies.
3. Due to the above, I'm guessing making a cone driver act as a good tweeter is much harder to design well than a dome.
None of this means there aren't any good cone tweeters. They are just a lot rarer. These things are gaining more attention though, mostly because they usually are also usable as midranges. So things like Bluetooth speakers and soundbars tend to use them. One nice modern example of a good cone tweeter (well actually it's almost a full-range driver) is the SB Acoustics SB65-WVAC25-4. It has a smooth response from 150 Hz to 20 kHz, and the off-axis isn't too bad either. Distortion is also very low for such a small driver.
0. back in the day, cones were all they had. Once they came up with the technology to create fabric or rigid metal domes, they basically started to dominate the markets. This is due to the following reasons (among others probably):
1. usually cones are larger than about 1", which means they will start beaming earlier than a dome. So off-axis, domes are usually better behaved.
2. a dome is usually more pistonic in nature at high frequencies. It has fewer deformation modes than a floppy cone. This means that a cone generates HF mostly by resonances, where a cone relies more on nice pistonic movement to generate the same frequencies.
3. Due to the above, I'm guessing making a cone driver act as a good tweeter is much harder to design well than a dome.
None of this means there aren't any good cone tweeters. They are just a lot rarer. These things are gaining more attention though, mostly because they usually are also usable as midranges. So things like Bluetooth speakers and soundbars tend to use them. One nice modern example of a good cone tweeter (well actually it's almost a full-range driver) is the SB Acoustics SB65-WVAC25-4. It has a smooth response from 150 Hz to 20 kHz, and the off-axis isn't too bad either. Distortion is also very low for such a small driver.
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I have a memory of the old cone tweeters being a bit more rugged than the first little plastic dome speakers (whiched looked like a little plastic dynamic microphone diaphragm inside). They used to burn out when stressed at parties 
whereas cone tweeters didn't. Of course, one could always use horns, they've been around all along.
whereas cone tweeters didn't. Of course, one could always use horns, they've been around all along.Tweeter Shapes: Cone vs. Dome - Quintessence Audio LTD
For the uninitiated, a tweeter is the component of your speaker that produces higher frequency audio, like vocals and horns. Tweeters are the opposite of
chicagoaudiodealer.com
Seems dome, VC and faceplate is an assembly that can be lift off, ferrofluid can be wiped out of the gap using sticky tapes, and re-added. Maybe for cones this can only be done when re-coning
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