It's not common sense though. What is the definition of soft? To me they feel soft. Are they soft enough to properly seal against a flat plate? I have no idea. I don't know how much softness is needed
If they feel soft to you (and you're not a flat metal head with ears), then the most logical guess is that they will mold perfectly to a flat surface, like the fixtures we are talking about.
It's as easy as testing by placing them on a two flat, hard surfaces separated by a width of your head and seeing if they mold well and don't generate a visible leakage spot.
You don't need numbers or hard science for that, just trust your observation skills.
Again, it's not that simple. Define "weak". 1db? 5db? 10db? 50db? Because while the 3 measurements we have all show a drop-off in the sub-bass (which as I've stated, has been my experience listening to them), there is one outlier (Amir's). So which is correct? The 1 outlier or the other 2?
The fact that science allows repeatability does not imply that you have identical results even when you have practically the same variables, let alone when multiple variables are in play as we have here (different units, pads in different condition, different fixtures, positioning, external factors and a very long etc).
What that repeatability allows you to see, in one order of magnitude or another, is a noticeable pattern (in this case, a poor sub-bass response compared to the rest of frequency response) that you can even corroborate empirically, listening to it for yourself, as you have done.
It's not about taking sides and saying that someone is right or wrong, as I said, both Amir's and Jude's measurements show similar results (once you match the methodological framework). You are the one who makes the effort to say that Amir's results are diametrically different from Jude's and they are not.
Logarithmic vs linear is only a visual thing. What we care about is the % distortion. And both graphs show that on the left side.
I can't argue on that, but visual things also lead to confusion when you try to replicate and disprove someone else's position.
The distortion is not the same either, Jude's base measurements are performed at 90 dB while Amir's are done at 94 dB, so you can't expect the same distortion ratios.
Consistency is key if you want to obtain repeatability, which Jude didn't want.
I agree. Please show me someone who has faithfully replicated Amir's results with a degree of confidence.
Jude has done that with Abyss' results.
If no one has done it, what prevents them from doing it?
Amir doesn't control the personal audio industry and anyone who has a fixture of this level can replicate the results with the methodology that he uses (which is public and available to everyone).
Jude has been using the B&K 5128 for more than 6 months now and we have only seen a few measurements with it, using a methodology that not only differs from Amir's, but also from other people such as crinacle or oratory1990.
I see it more as a lack of initiative rather than an impossible challenge.
So what you're saying is that there is zero percent chance that he did the measurements improperly? Please confirm his measurements (to faithfully replicate results with a degree of confidence). But make sure to use the methodology where the subject being tested is tested for a real world application (proper seal).
Thanks.
Again, stop making these absurd "pick-a-band" statements, this is not a war in which you have to take sides.
When did I say that Amir is not likely to make mistakes?
What I have said is that I quite agree with their methodology and approach of demanding well engineered products and stop scamming people with snake oil claims. Does that seem wrong to you? Why does the measurements of the Diana bother you so much if you are enjoying them perfectly?
I have not seen (until now) a bias on their part in favor of one thing or another that makes me question their integrity, beyond things that they measure exemplary, but beyond that, I limit myself to talking about their measurements and how their methodology correlates with my professional experience, nothing else.