Just received my DBA-02's from Ethan yesterday.
I've re-read this thread (while listening to them) and have to agree completely with LFF's, rawster's and other reviews in this thread. I have pretty limited IEM experience (see my signature), but these are excellent! I would consider myself a "non-analytical" listener, but these aren't too aggressive for me, although I seem to be adjusting the volume up and down more than with other IEMs.
Hard to characterize anything distinctive about their sound signature - guess that's what more articulate reviewers call "natural, transparent, and uncolored" - but they are certainly not boring! My only (extremely slight) negative SQ comment would be that one track from KT Tunstall sounded a little bit bright, but I haven't otherwise noticed any treble harshness, including on some piano and female vocal tracks that can induce fatigue to me with other IEMs. I'm certainly enjoying even more texture, details and space in the music than what the M9P provided, while still retaining the musicality and engagement that I've preferred from the NE-7M, with no tendency toward the NuForce's or MEElec's occasional dominant bass, although bass impact is there where appropriate. To my ears, they have the best attributes of both those IEM's without either of their drawbacks.
I play these direct from either of my portable sources with no EQ, and find that they use the same mid-volume setting as the NE-7M (a notch or two less than the M9P). They sound equally good with both sources unlike the NE-7M (preferred with BB) and M9P (better with iPod Classic). They are quite comfortable with a good seal in my ears using the supplied medium tips, although I'm usually a "large tip" guy. The twisted wire seems less prone to tangling, with minimal if any microphonics, but it is a trifle long as noted previously. Just wish they came with a pushbutton/mic option so they could be my do-it-all IEM.
A track from one of my favorite albums, "Might Rearranger" by Robert Plant, just showed up in Shuffle All. Absolutely great bass, mids, vocals, treble, soundstage, imaging and presentation! Now a very different track from Plant's buddy, Alison Krauss - every bit as good. Here's Mark Knopfler's "Remembrance Day" from his latest "Get Lucky." One of my favorite parts of this track, the background vocals from the children's chorus (I believe these are the band members' kids), is perfect. Now I'm listening to Patty Griffin from "Downtown Church" and can clearly hear the fabulous effects they created by recording in a big old church in downtown Nashville. Haven't heard any genre yet from my eclectic collection that doesn't shine with these DBA's.