First impressions of v1.0 vs v1.2 using ES3X:
v1.0 just sounds better overall. Fuller, more detailed, can handle complicated parts better (i.e. high string orchestra + high female vocals + some other auxiliary treble all at once), and soundstage / imaging is more realistic. I'll post again on the weekend for HE-400s w/ Alpha Pads and possibly after burn-in (if DACs / amps do burn-in. Personally I'm not much of a believer).
Interesting. This is the first I've read that says the 1.0 is preferred. In my experience, the df didn't change noticeably with use. Looking forward to your findings, thank you.