While they are still very green a few quick initial impressions vs a few Grados I have laying around. Compared to vintage RS1s with flats they are a bit less colorful (and colored) and far less closed in. Compared to the GS1000s? The dip in the mids is GONE. In fact, I'd go so far as to say that out of the box the upper bass to midrange is the phones tonal center. A real sense of texture and weight on voices combined with the GS1000s open soundfield.