shane55, maybe you should try a good dynamic driver IEM instead of balanced armatures for a more similar timbre to D7000. I think JVC FX700 is quite close to Denons in sound signature and have a very natural timbre for real instruments. JVC FXT90 is also a great, less expensive option and has more forward, more engaging mids and a more neutral overall sound with less emphasis on bass than FX700 while maintaining a very natural tonality. Other options include Hifiman RE0, 262 and 272 which are quite a bit more neutral than the JVCs and closer to DBA-02, although I prefer all three to DBA-02 by a good margin. I personally found DBA-02 a tad too bright for my tastes. I also found them lacking dynamics and the bass was somewhat bloated to my ears compared to the Hifimans or FXT90 for example. Like you wrote, I also found the timbre a bit odd on DBA-02. In particular, I though the mids had an unnaturally airy quality to them. Not sure how else to describe it. I think RE0 is quite close to DBA-02 in sound signature, minus the annoying treble spike and colored mids and plus tighter, better defined low end. RE262 and 272 are warmer than RE0 or DBA-02 and also offer better dynamics and tighter, deeper bass than both. I feel that timbre is the most natural on RE0, but RE262 and 272 are still better than DBA-02 in this regard IMO.
Regarding Westones - I really liked UM2 and Westone 4, but hated Westone 3 and UM3X. UM3X is just too dark and soft sounding IMO. Westone 3 is too bloated in the bass and incoherent. UM2 is warm and fun with more treble than UM3X and a better controlled bass and a more coherent sound than Westone 3 with an insignificant step back in some technical aspects like speed, definition and detail. I listened to Westone 4 a couple of times for a total of about an hour or so and my early impressions are that it is a really great IEM I think and solves the problems of Westone 3 and UM3X successfully to my ears. It is more neutral than any of the other Westones I tried with better extension and better technical ability than any of the others. It is the first Westone IEM I am really interested in spending more time with. It seems to reproduce real instruments with great realism, but I still have doubts about its coherency and I also found that it softens the edges of sounds a bit too much perhaps which hurts the accuracy. But I definitely recommend giving Westone 4 a try. It's definitely better than DBA-02 - tighter bass, much more depth to the sound, more refinement, more extension, better dynamics. Westone 4 is superior in just about every way. Compared to a good dynamic like one of the Hifimans or JVCs, I am not sure yet whether Westone 4 will be able to hold its own in coherency and timbre naturalness, but technically it is extremely good and most likely quite a bit better than the dynamic drivers. The Westones really excel in soundstage size and depth, as well as separation and imaging.
