I tested the original (before Erich paid to have them remanufactured).
https://www.diymobileaudio.com/threads/exodus-anarchy-klippel-data.114921/
7.1mm one-way
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Which speaker driver shows the best measurements?
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I tested the original (before Erich paid to have them remanufactured).
https://www.diymobileaudio.com/threads/exodus-anarchy-klippel-data.114921/
7.1mm one-way
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Nice, thanks. Do you know if they published the measurements?
EDIT: ah, they seem to no longer exist...
Do you recall which drivers you tested by any chance?
1.9mm limited by suspension. Speaker is NLA, but if I had to guess, I'd say they put the xmax around 5mm one way.
https://www.diymobileaudio.com/threads/sb-acoustics-17nrxc35-4-klippel-data.114396/
Shallow mount sub. https://meniscus.lightningbasehosted.com/wp-content/uploads/2015/11/SW26DAC76-4-Data-Sheet.pdf
Spec'd at 24mm p-to-p, so 12mm one-way "linear". I measured 6.6mm one-way "linear" using the more relaxed distortion threshold of 20% (as opposed to 10% for non-subwoofers):
https://www.diymobileaudio.com/thre...ac76-4-shallow-subwoofer-klippel-test.115336/
I tested another but can't find it.
Voice Coil tested the 6.5-inch Satori. 3.3mm one-way linear excursion.
https://audioxpress.com/article/the-mr16p-4-6-5-satori-midrange-from-sb-acoustics
Spec says 6.2mm p-to-p, so this one they got right.
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Wow, that suspension is really something!
We are not here to listen to your sarcastic complaining. If you don't like what is going on, it would be best if you did not post. You are adding negativity to threads with zero information, which we could do without.
OP
sloth_kwj
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Did anyone use SS R2904 or R3004? SS’s ring radiator is used in many high-end speaker and I also heard one of them(Barefoot speaker use R3004-602010, I really love extreme resolution in high-frequency) But their HD is seems high. 2nd is high but after 3rd are okay. Any thoughts?
Waybackmachine shows Erin's old website with driver measurements
https://web.archive.org/web/20180307172001/http://medleysmusings.com/category/speaker-driver-tests/
https://web.archive.org/web/20180307172001/http://medleysmusings.com/category/speaker-driver-tests/
All ring radiators I know show slightly increased HD2.
At 90dB@1m the Scan-Speak ring radiators show mostly around 1% HD2 if the crossover frequency is not lower than 2kHz (at least the reviews I know of). This is no problem for normal hifi listening.
The sound pressure radiation in the high frequency range decreases rapidly off axis - that is what characterizes the sound of the ring radiators.
There are different opinions about the sound quality of ring radiators. The extreme resolution of the sound image you have already described. Some are totally enthusiastic, for others it no longer sounds natural.
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sloth_kwj
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I also heard some unnatural sound. Is there any reason for high distortion in H2? Because other specs are really good.
My friend, Marian in Poland made Linearaudio.pro MTM designed speaker using tweeter based on SS R2904 but fully customized. They sound really awesome. Also they have own power-amp and subwoofer similar to Amphion system.
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My friend Mike Garrett of AVScience used the Beyma in a baffle wall. He says every year when he goes to Cedia that he doesn't hear anything that beats his system to his ears.
For the woofers, Mike uses Acoustic Elegance. I have heard nice comments on these drivers, but I don't believe I have ever seen any of them tested.
http://aespeakers.com
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For a given diameter, a ring radiator will have less radiating area, which will tend to mean higher distortion at lower frequencies (than an equivalent diameter dome, assuming all else is equal ofc).
There is always a reason, only I do not know it.
The reason might be constructional, because the diaphragm is fixed on the outside as well as on the phaseplug. The voice coil divides the sound radiating diaphragm into two segments. The two segments are asymmetrical (unevenly sized areas), therefore more HD2 ??? ... don't have a clue.
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Big fan of Accuton tweeters. Their Bass/Mid is good as well. One of the best bookshelves I have listened is XTZ Divine Delta https://www.xtzsound.eu/product/divine-delta which uses Accuton drivers.
Very musical.
I think this Satori driver has the lowest distortion from 100Hz to 1kHz out there.
https://hificompass.com/ru/speakers/measurements/satori/satori-wo24p-8
https://hificompass.com/ru/speakers/measurements/satori/satori-wo24p-8
Maybe not above 500hz with the rise of H5 (still quite low). But yeah, it is still a monster above 100hz. And it is not even that expensive, it can be found for 180€ on some websites
Among the few competitors that are as good or beat it, there is the Scan-Speak 26W4867T00 (which is larger and more expensive). There is an interesting test of six 10" woofers (with the 26W4867 and the wo24p among them, HD, IMD, directivity etc). The test is in French but with Google Trad it should not be an issue.
Thanks for that. I think I glossed over that due to off-axis not being measured.
While ~2x as expensive than the SB Acoustics SB23NRXS45-8 I mentioned in my first post, it does indeed have lower distortion at the same SPL and keeps that low distortion into higher frequencies, bass extends deeper too due to being larger. It is lower in sensitivity though.
So, if your midrange can’t go too low (say the Tectonic BMR), it’d be a good choice.
If crossing over to a sub and only needing to cross up to ~350Hz, I’d keep the SB.
Also, is Satori an offshoot of SB?
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Indeed they are. I’ve been browsing the Hificompass measurements a lot and noticed the Satori are meant to be more premium but more often than not are just different.
For example the sb15nbac midwoofer has lower distortion and costs half as much as the mw13, the latter of which only benefits from smoother response at higher frequencies (due to less sever paper cone breakup presumably). I agree with your remarks about the larger 8/9” drivers too. The 2x cost satori would be similar in performance to 2 sbacoustics drivers on paper, making the value proposition confusing.
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Yeh, I think as @ctrl said the relatively high H2 will come from some kind of asymmetrical nonlinearity, either in the surface areas of the radiating elements either side of the voice coil, or equally likely IMO asymmetry in the restoring force (stiffness/compliance) acting on each “ring”: the outer ring is attached at the outer edge (don’t know if there’s a “surround” there as such, but certainly something sticking it to the edge), while the inner ring is held in place at the centre by the phase plug. This means that a given force exerted on each ring as the motor moves the voice coil is not going to be acting on each ring in quite the same way. And as always motor nonlinearity could also be a factor ofc. But unfortunately I don’t think I can give you a definite answer!
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