I'm surprised that you didn't like the HE-500 more, since the 650s are your reference headphone.
I think out of those that you listed, it's the closest to a similar sound signature for the 650s. Perhaps the pairing with the amp was not synergetic at the meet? I didn't have a listen to that setup, so I don't know... However when the 650s were my reference headphones, and I obtained the HE-500, I indefinitely preferred the sound of the HE-500 (once they were properly amped), while I preferred the comfort of the hd650. The sonic similarities I draw from those two headphones are: extremely seductive mids, impactful bass, great for laid back listening due to the inherent darkness.
Btw, I will say that your setup brought back good memories of the 650 days! My gf really loved your(or your wife's) music selection!
Did you get a chance to pair your 650 with the crack? IMO- Phenomenal match, especially since it sounds more solid state than tubey
Oh don't get me wrong, I liked them a lot, but I guess I just slightly prefer the HD650. We can probably blame system bias too .
And awesome! My wife had told me a woman came over and complimented the variety of music, and I caught a glimpse of the Playlist she had playing in Vox (some of my favorites by far). It's mostly my music with a bit of hers in there (I'll blame her for all the bad stuff ).
And unfortunately no, I didn't even notice the Crack until we were all packing up. And he was right beside me basically . I'm still very curious to hear the combo.