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Post by bobdobbs on Jul 9, 2021 20:24:24 GMT
First of all, thanks for all the great measurements and observations. They've helped a lot in deciding on various headphones and how to get the best out of them. You've posted measurements on both the Hifiman HE560 and Sundara. I have the HE560 (v4) and am very happy with it after EQ, but I notice that its distortion is a bit lower than the Sundara as you (and some others) have measured it. You note that the actual distortion for the Sundara is probably lower than what you measured, so I'm assuming this is true for the HE560 as well? I do listen just a bit louder than 90dB sometimes, and from what I've seen elsewhere, the Sundara's distortion starts to rise above 94dB or so. Not sure if the HE560 does or not, since I've never seen quantified measurements on it. I'm thinking about adding a Sundara to my collection, but if it doesn't really offer any improvement in distortion or tonal balance (after EQ, of course) it might not be worth the effort. Comments greatly appreciated.
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solderdude
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measureutternutter
Posts: 4,881
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Post by solderdude on Jul 9, 2021 21:48:16 GMT
I have neither heard nor measured the HE560v4 nor the latest iteration of the Sundara. I expect most differences to be in pads though driver tech also improved over the years. Distortion in most planars is quite low. HE560 won't be much different from Sundara I reckon. In the mids and treble it is unlikely to have high SPL anyway so most likely, even at loud listening levels, high SPL in mids and treble is not present. Also, what people often don't take into consideration is that the louder you play the less sensitive the hearing becomes for harmonic distortion. zone.ni.com/reference/en-XX/help/373398C-01/svaconcepts/svfreqmask/
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Post by bobdobbs on Jul 9, 2021 22:14:29 GMT
You, sir, are a prince. Thanks! I appreciate your honesty (part of the reason I also bought Sennheisers after reading your reviews).
If I understand that graph correctly, the dotted line is the threshold of audibility and the data lines show the level which needs to be exceeded in order to detect a masked signal against the 1kHz test tone?
I'm going to do some experiments now to see what my typical listening levels are (after filtering out lower frequencies first).
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solderdude
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measureutternutter
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Post by solderdude on Jul 11, 2021 5:38:13 GMT
If I understand that graph correctly, the dotted line is the threshold of audibility and the data lines show the level which needs to be exceeded in order to detect a masked signal against the 1kHz test tone? yes..
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