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I think they do...at least a variant. M4 MkIISo the obvious question is: If it's so good why doesn't Dynaudio make it any more?
I think they do...at least a variant. M4 MkIISo the obvious question is: If it's so good why doesn't Dynaudio make it any more?
K+H used to employ this legendary 3" to good effect. However, the custom job the current big Neumanns are using is an even better performer.Strangely no one mentioned ATC with their arguably best midrange dome.
I think it is different rather than necessarily better.K+H used to employ this legendary 3" to good effect. However, the custom job the current big Neumanns are using is an even better performer.
The ATC domes are very cool chassis, there's no doubt about that. They are still at the cutting edge today and the competition has still not managed to achieve the full package of positive characteristics.I think it is different rather than necessarily better.
The ATC covers over 3 octaves in their monitors but the Neumann less than 2 octaves, maybe due to power handling,
There is also the crazy expensive 84mm Scan Speak D8404Regarding performance of the SM75-150, I fully agree. But I am sure is has nothing to do with power handling as midrange domes in general offer big voicecoils, high sensitivity and formidable power handling.
The usable range usually is limited by their behavior closer to resonance frequency (with many models showing ugly distortion) and how they behave when reproducing wavelengths in the region of their own diameter. Those with softer, rounder and damped domes tend to show sudden increase in directivity index similar to a ring radiator.
On paper, the TB 75-1558SH looks promising, but have never tried any or listened to it.
THD plot does not look too great. Look at wild swing just above 1 kHzThere is also the crazy expensive 84mm Scan Speak D8404
Fs 280 Hz
THD plot does not look too great.
Look at wild swing just above 1 kHz
Anyone who needs 110db at 1khz won't be needing it for long.THD plot does not look too great. Look at wild swing just above 1 kHz
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Anyone who needs 110db at 1khz
I've no idea, but that seems a weird way to measure distortion that's so linked to output level.Are you sure this was measured @1m? It looks like a measurement executed by Vance Dickason and he prefers to normalize to 1m and reference level (like 90dB) first, subsequently executing the THD measurement at dramatically lowered distance (like 10cm), so the abscissa scale becomes worthless.
I think Troels has used the D8404 in his A50 & 84 build. A50 looks to be 4way & 84 3way.I've no idea, but that seems a weird way to measure distortion that's so linked to output level.
ATC speakers easily do 110dB, and some of them another 10dB more, all using same 3" dome. 1-2 kHz is a very critical frequency band, and any competent mid-range driver should not have any anomalies there. At 90dB of 1kHz distortion from ATC speaker is less than 0.1%. Not many other manufacturers can even match that.Anyone who needs 110db at 1khz won't be needing it for long.
Purifi can do that level, but their drivers have much lower efficiency compared to the ATC mid. Even the dedicated 6.5" Purifi midrange (PTT6.5M08-NFA-01A) have a voltage sensitivity of only about 90 dB/1 m and it's a 8 Ohm driver whereas the ATC dome can do about 93 dB/ 1 m at 2.83 V and it's a 16 Ohm driver. This means that the Purifi need 4x the power for the same SPL as the ATC SM75-150S. This also means that the intended frequency range of the ATC dome, it probably have lower power compression at the same SPL as the Purifi.At 90dB of 1kHz distortion from ATC speaker is less than 0.1%. Not many other manufacturers can even match that.
They have been running with electronic crossovers for decades, only when they became 12xx series they got DSP. E.g. 1038a vs 1238a... Look at measurements, not much difference.All Genelec main monitors depend on DSP to operate correctly. ATC can function with passive crossover. So they are more like comparing apples to oranges.
My same thoughts until I hit yours.Several replies later and TAD hasn’t even been mentioned yet!
JBL has also made some premium, SOTA drivers over the years. JBL 1500al, anyone?
Just read this buddy: https://dariusforoux.com/fear-of-better-options/In your opinion
Which company makes the best drivers in the world? (woofers, tweeters etc)
Fomo is realJust read this buddy: https://dariusforoux.com/fear-of-better-options/
Even the dedicated 6.5" Purifi midrange have a voltage sensitivity of only about 90 dB/1 m and it's a 4 Ohm driver whereas the ATC dome can do about 93 dB/ 1 m at 2.83 V and it's a 16 Ohm driver.