I really wish I stocked up on these years ago. Anyway, something with the following characteristics would be really nice:
- compact form factor (mini flange)
- hard dome
- clean behaviour (relatively smooth and with a decent CSD)
- relatively good distortion down low
- not super expensive - looking you, SS beryllium tweets...
- no ferrofluid ideally
- compact form factor (mini flange)
- hard dome
- clean behaviour (relatively smooth and with a decent CSD)
- relatively good distortion down low
- not super expensive - looking you, SS beryllium tweets...
- no ferrofluid ideally
It's maddening. All of those tweeters were fantastic. The NE19VTS are disappearing too.
Peerless by Tymphany NE19VTS-04 3/4" Silk Dome Tweeter
Peerless by Tymphany NE19VTS-04 3/4" Silk Dome Tweeter
Has ferrofluid, and turns into a mess at higher SPLs down low - and I don't mean sub-2 kHz either...
Yeah, ferrofluid.
THD and with both 2nd and 3rd is worse with the NE19 for a given input voltage. Higher order distortion is of course worse for the DQ above 1.6 kHz, but still not bad.
Turning into a "mess at higher spls" isn't really true on a comparative basis:
DQ at 2v83 is equivalent to the NE at 5v6 😉
-still, I don't think you'll find what you are looking for at a good price without some form of modification. 😱
I think your best path to achieve higher quality at a lower cost is to perhaps relax the "hard dome" (which most metal domes are not - being more of a foil unless they have very deep oxidation), and/or the diameter size.
Speaking of overall diameter: consider removing the face-plate and printing your own to get the larger driver as close as possible. (..you don't even need a printer, there are plenty of services for something like this.) Also, you could potentially integrate a mild elliptical waveguide (where the midbass-midrange next to the tweeter "cut's into" it) to achieve better distortion performance at lower freq.s.. 🙂 Getting the faceplate/waveguide might be a headache initially, but once you've got it then it's just a matter of printing it as often as you need.
Other than that pricing goes WAY *up (or inferior units like from Tang band or Dayton Audio) to achieve something similar.
*mostly Be drivers, though perhaps the aluminum Bliesma t25a-6 is "the" starting price/entry point for these higher priced drivers.
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you have also this, but FF still. Dome tweeter Audax TM025C5, 8 ohm, 1-inch voice coil, 1.57 inch front
Not flat like the good Monacors from above.
flater and Al : H1397-04 27TAFNC/D FF still !
Not flat like the good Monacors from above.
flater and Al : H1397-04 27TAFNC/D FF still !
SB26ADC is like that, and resonable small form factor i think. And other SB26 models are also like that, but the SB26ADC is my favorite.
Independent measurements:
SBAcoustics-tweeters
SB Acoustics SB26ADC-C000-4 | HiFiCompass
Independent measurements:
SBAcoustics-tweeters
SB Acoustics SB26ADC-C000-4 | HiFiCompass
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..low-level detail often goes "bye-bye". Not always though - depends on the viscosity and application.
Not that much really, I just personally don't like the idea of it. I have a (admittedly overblown) fear of the FF oil drying out after some years in service.
Yeah FF drying out is about the only issue I have with it. For it to swallow low level detail it would have to be extremely poorly designed and have a considerable impact on the rest of the devices performance.