And here we go, the very reason why measurements are mostly pointless in a general scale, they are exactly as I assumed a while back, good to baseline against headphones on the same review just to highlight where one differs to the other, but for what audio sounds like to human ears? There is only one measurement that matters, each person's individual ears. No two people will ever hear the exact same sound coming from headphones or speakers for that matter, which explains why some measurement thumpers will outright deny anyone who trusts their ears alone, aka ASR forums for the most part.
So whilst measurements might be scientific, so is biology, and biology cannot be given a fixed value. So like a piece of art, measurements go out the window when referring to how something sounds to the actual ears as its' different to every single ear on the planet.