Time to awaken this thread, I got myself a pair of these drivers first horn on the list is a TAD TD4001 clone
An externally hosted image should be here but it was not working when we last tested it.
TAD beryllium and Radian beryllium and various faital proVery cool. What other drivers do you have experience with? Thanks.
TAD beryllium and Radian beryllium and various faital pro
Sounds like some interesting comparisons!
Let us know how you get on.
Chris
initial impressions, plays lower with less distortion than Radian 950 beryllium , needs some eq up top as expected. very good sounding
Do you hear any advantage for the Radian above 1k when both are eq'd the same? Thanks.
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Wow great!
@speedy6963 any chance to post some measurement?
On which horn are you testing those?
@speedy6963 any chance to post some measurement?
On which horn are you testing those?
Wow great!
@speedy6963 any chance to post some measurement?
On which horn are you testing those?
tested on eliptrac 400
frequency response
An externally hosted image should be here but it was not working when we last tested it.
Distortion
An externally hosted image should be here but it was not working when we last tested it.
tested on eliptrac 400
frequency response
Shared album - John Cozad - Google Photos
Distortion
Shared album - John Cozad - Google Photos
frequency response
Shared album - John Cozad - Google Photos
Distortion
Shared album - John Cozad - Google Photos
I have a pair for sales if anyone are interested. They are basically good as new. Contact me by pm.
Thanks Rob. I wonder what happens past 12 kHz?
That is pretty much beyond 'the vocal range' for which the Axi2050 was intended, so maybe Celestion didn't consider it relevant 😀
While I was searching for the origin of some good ol' fiberglass diffraction horns that I've bought, I stumbled upon some Outline horns that look quite similar to the Celestion LH9045R.
The Outline horns are a bit smaller though and 60x40.
Attachments
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Another interesting large format driver that was recently anounced:
QUICK ACOUSTIC SPECS
Nominal Impedance: 8 Ohm
Minimum Impedance: 8.3 Ohm
AES Power above 0.9 kHz: 120 W
Maximum Power above 0.9 kHz: 240 W
Minimum Crossover Frequency: 0.7 kHz
Sensitivity (1W/1m): 109 dB
Frequency Range: 0.5÷20 kHz
Voice Coil Diameter: 86 mm (3.4 in)
Diaphragm Material: Ketone Polymer
Diaphragm Shape: Annular
Flux Density: 2.2 T
Re: 6.8 Ohm
Phase Plug Design: Radial



QUICK ACOUSTIC SPECS
Nominal Impedance: 8 Ohm
Minimum Impedance: 8.3 Ohm
AES Power above 0.9 kHz: 120 W
Maximum Power above 0.9 kHz: 240 W
Minimum Crossover Frequency: 0.7 kHz
Sensitivity (1W/1m): 109 dB
Frequency Range: 0.5÷20 kHz
Voice Coil Diameter: 86 mm (3.4 in)
Diaphragm Material: Ketone Polymer
Diaphragm Shape: Annular
Flux Density: 2.2 T
Re: 6.8 Ohm
Phase Plug Design: Radial
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The measurements where done with the LTH142, which is way too small too unleash the full potential of this driver.
The breakup looks modest and Faital's plots are usually not far from reality and the Ketone Polymer diaphragm provides a smooth sound.
People have used the smaller HF144 from 600-700 Hz without issues. This one should take 500Hz.
It remains to be seen whether the radial plug does well with a high flare rate at the throat.
The breakup looks modest and Faital's plots are usually not far from reality and the Ketone Polymer diaphragm provides a smooth sound.
People have used the smaller HF144 from 600-700 Hz without issues. This one should take 500Hz.
It remains to be seen whether the radial plug does well with a high flare rate at the throat.
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I have a pair of the Axi2050 that I will be selling soon on Audiogon. Ended up liking the radian 950 beryllium better
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