The “Weighted Harmonic Distortion” is significantly worse with 7.9 than the previous model’s 8.5. Indeed having just looked at that rating, I was looking for headphones which might be better, when I came across the older Sundara with a pretty good rating. It’s hard to figure out the significance of that “Weighted Harmonic Distortion” with the explanation, but I’ve asked AI (there you go) that it can be related to tone or timbre, and that’s arguably where one can find a weakness of the Sundara (particularly tone). (I did have a Sundara before, but it sort of got lost, without getting more into it.)

It’s said to be better than the Hifiman Sundara which I enjoyed very much and which also counts as very good here.