Just a point on the HD560s - it has more bass than any of the other headphones you mentioned, and mids are not recessed (if anything they're pushed a bit too far forward):
View attachment 292748
I'm not going to include frequency response pics of all the other headphones you mentioned, but you'll see that HD560s has more bass than any of the other ones you mentioned. You can check the frequency responses here:
index/list_of_presets - oratory1990
r/oratory1990: Mostly covering topics like headphones, in-ear headphones, acoustics, electroacoustics, acoustic tuning, headphone design …www.reddit.com
I mean it's not super contentious me pointing this out to you, and it's interesting to hear your experiences, but I didn't want readers to get the wrong impression of some of the headphones you mentioned.
All fair, actually I completely agree with all those frequency responses!
I might clarify, compared to the 600, the 560s sounds leaner and brighter to me. If I look at his measurements of the 600, he has a bigger peak in the low mids (just above the bass region), and the 560s has a bigger peak in the treble. That's generally what I hear.
To me the 560s is a better version of the Beyer 880, as the midrange is a little flatter and there's less of a peak in the bass and harsh treble.
