I measured HF1440 directly with the 460-36:
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7427264
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7426470
It could probably make a very nice sounding system but I haven't tried yet.
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7427264
https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7426470
It could probably make a very nice sounding system but I haven't tried yet.
Misunderstanding: the hf1440 in a Athex with conical throat extension (not meaningfull for 1.4" exit driver). Anyway in the 460 a bit curvy but after some eq may be good
Yeah, the extended version turned out to be so interesting that I want to study it a bit deeper now. The HF1440 doesn't seem like a good candidate, but who knows, maybe it's still worth a try...
Hi Marcel,
I am asking as I have two drivers, a phase plug of which terminates at the front face of the driver.
Kindest regards,
M
Can you please clarify- do you mean to use the 1.4 in driver directly at the horn sans the throat extension, or with a throat extension?
I am asking as I have two drivers, a phase plug of which terminates at the front face of the driver.
Kindest regards,
M
1.5 a/b Ratio at the mouth, Cutoff; 150hz F3, with the mouth height no bigger than 700hz.
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460-36 + Selenium D2500Ti-ND with an extension starting at the phase plug exit.
Just an attempt - harmonic distortion at 1 Vrms. I don't have a calibrated setup but this could be ~96 dB SPL@m for a conservative average estimate of 105 dB/2.83V.
The second set with the mic a bit farer away, seems consistent:
I see no reason why not to use this down to around 600 Hz...
The second set with the mic a bit farer away, seems consistent:
I see no reason why not to use this down to around 600 Hz...
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0.5 Vrms, i.e. 6 dB SPL less (probably reaching noise limits here):
One is perhaps that if you are really picky, you would like the distortion creating fundamentals below 600 to be at least say 20 dB down - that requires a quite steep filter... to obtain perfection, one need margins... wide, preferable....
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OK - 4th is about 5 dB better than 2nd at 500Hz - and looks good with filter - thanks!
Still - 1% 3rd at 500.... had been nice to keep below 0,1%...
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Still - 1% 3rd at 500.... had been nice to keep below 0,1%...
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The 2" driver I used (PA-D99) also has 1.5" at the phase plug exit. You can try to make an extension for the 1.4" throat of the 460-36 as I did. It doesn't seem to matter much -
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BTW, it's possible to buy the sole diaphragms+coils for (e.g.) the D2500Ti. What could one expect when clamped this between two rubber rings? Wouldn't there be some advantage over the stiff surround for home use? That's what I intuitively feel but maybe it's not a good idea (?) so it's not even worth a try.
Hello Everyone,
if have a little problem with the ath 4.8.2. – maybe anyone can help me 😊
I try the demo1.cfg example.
When „reading bem_mesh.geo“ the program is freezing:
When i use gmsh v.4.6.0, i get some errors but the abec project is created … But whats the Problem?
Best Regards
Andreas
if have a little problem with the ath 4.8.2. – maybe anyone can help me 😊
I try the demo1.cfg example.
When „reading bem_mesh.geo“ the program is freezing:
When i use gmsh v.4.6.0, i get some errors but the abec project is created … But whats the Problem?
Best Regards
Andreas