after more thorough listening (of the Vega) and burn-in (?), the peculiarity in the treble has disappeared for me! Great iems! superb tuning for my personal tastes. Makes me sit a listen to the music rather than just having them for some background music while doing something else. I'm in the honeymoon phase... might explain why I'm discovering much more subtleties in my music collection with these iems and the QP1R than with the HD800/Mojo/Gungnir Multibit.... Gonna have the andro soon! Eager to see how it fares and how my impressions will correlate with all the great feedback in SBAF.