I don't think I saw any HE-560's measurements that looked great to begin with... Yes, the earlier ones looked somewhat better but I would still take my modded HE-500 over these HE560s any day.
I feel that HE560 with Focus-A pads and some additional tuning has a lovely tonal balance; more energetic than HE500s but equally close to neutral. The crux of the issue for me is that HE500s are just lacklustre in terms of articulation: it is noticeably "slower"-sounding and even blurred next to HE560s. I'm talking both modded, of course.
Yes, HE-500 are kind of completely different from something like HD800s in terms of their approach to the technical side of headphone sound. The modded HE-500s I use represent what Audeze would love to sound like - close to neutral, with a very good soundstage and sense of openness but relaxed, smooth and with a very black background at the same time. Articulation is not the word I would use to describe them because it was never meant to be a technical monster. For me, it's just Audeze or HD600/HD650 sort of sound done right :-)I personally admire both approaches (HE500 vs HD800) when done right. The problem is that rarely any headphones does it right (while being affordable enough). And I am not sure HE-560 are that great... Plenty of people like them, plenty of people don't like them. And all available measurements look rather mediocre honestly. It's kind of very polarising and confusing headphone/situation.
Yup. Yup.Tweaked HE-560 > tweaked HE-500.
You can tweak the HE-560 frequency response, but you cannot tweak the HE-500 to have a clearer, more articulate, and more resolving sound.Sorry, tweaked HE-560 > HE-500.