I currently have the DT770 Pro 80s as my first pair of cans, as a result of the unfortunate belief that I love bass. The hardware EQ on my E17 helped me understand that I do not in fact love bass at all, as I had to tame it significantly to enjoy most songs. I preferred the sound when I boosted the treble, however the sibilance killed my ears. I concluded that an open design would be more to my liking.
Thus my question is what cans do I get next if I want an open, airy treble, tame bass, high resolution and detail, and below $400. I have omitted the Q/K 701/2s from my search due to concerns about awkward mids, sibilance and discomfort. I have also eliminated Sennheiser HD 598s as I auditioned them and the treble roll-off was too much, not to mention a sudden craving for cheesecake upon seeing them in person.
I have considered DT 880s (250) and HD 600s.
Once again, I want a very airy, neutral sound, without fatiguing highs.
I think that you will have to look elsewhere. The DT 880 is bright and the HD 600 is not airy. Read more about both (and other quality cans) here: