The DT770/600 are too treble-dominant a listen for me, I guess. They actually sound hard/"varnished" in the treble to me as well [as did the T1, but not as markedly]. After the DT880/2003 version--my all-time favorites, I have not warmed up to any of Beyers' subsequent offerings. From the introduction of their "Premium" line and all-the-way forward the Beyers--at least for me--lost most-if-not-all of their listenability. Instead of the seemingly unbounded HF and LF extension of the past, the new Beyers seem confined and even sheered off along the treble and bass reaches.
The DT880 Premium/250 ohm were possibly THE most disappointing headphones I ever auditioned. The DT880 Premium/600 ohm sounded much better to me, yet also signally failed to recapture what their 2003 predecessors delivered in spades.
Amping with the ß22 is probably not optimal either, as I have noted previously. May wait until the Bada hybrid comes back from the shop, but if the DT770 happen to sell before that, then so be it.
I prefer the superior balance of the Mikros 90. And after I grab for the PM-1, it's "all over" for the Beyers.
At least I can say that I listened all the way across the DT Premium 600 ohm line [770, 880 and 990]. End of chapter.
Edited by pataburd - 7/4/14 at 2:52am