That's good to know because I nearly pulled the trigger at one point on the THX-00 purpleheat edition. Glad I stayed the course. I have found some recordings the th600 doesn't particularly shine on but for that I either switch to s Senn HD600 or Beyer 990
Agree, the TH-600 is not the best for all genres or music
I have the Beyerdynamic DT990 600 Ohm premium and my Fostex TH 600 with Lawton Mod smoke the Beyerdynamic DT990, YMMV.
It depends on the genre, for classical, acoustic jazz and blues the DT-990 is much better than the TH-600 IMO.