im particularly curious about some of the treble qualities of the he-560 vs he-400/he-6. The he-400 has a distinct tizz that can be reduced with jergpads and proper amping, but it is still there nontheless. The he-6 is reported to have it when not amped properly, and the he-500 has it but to a notably less degree than the previous 2.
This really requires comparing the he-560 to a non-tizzy phone like a sennheiser hd6xx, maybe even the he-500. I'm just curious with the more present treble, does the he-560 retain much of the "tizz" or is the timbre a bit more natural than the other hifiman's? Not sure if Jerg or Edwood or anyone else who has actually heard the hp can note on the treble qualities, particularly "spikes" that may become more problematic at loud volumes as well as overall tone and timbre, specifically the tizzy quality of the hifiman line.