@seventies - I would not make any judgements on your new D3 speakers without breaking them in at least 100 hours (possibly even 200+ hours). The speaker cones need mechanical break-in and the Mundorf capacitors do need 100-200+ hours of electrical break-in before the speaker loosens up and settles down.
@arty-vandelay - Hmmm, I actually kind of disagree with you Arty, in some ways. I have transition from 805D2 / HTM2-D2 to a st of 805D3 and HTM2-D3. The D3 models actually have deeper bass and a much better midbass strenght (which is the upper bass / lower mids). I can see where you might say the D2 series sound warmer and richer, but in my opinion, what you are actually hearing is the breakup distortion of the D2 kevlar speaker cones. I had a significant issue with my D2 and kevlar breakup-distortion. It made the upper mids sound harsh and distorted in comparison with the new D3 models.
@arty-vandelay - Hmmm, I actually kind of disagree with you Arty, in some ways. I have transition from 805D2 / HTM2-D2 to a st of 805D3 and HTM2-D3. The D3 models actually have deeper bass and a much better midbass strenght (which is the upper bass / lower mids). I can see where you might say the D2 series sound warmer and richer, but in my opinion, what you are actually hearing is the breakup distortion of the D2 kevlar speaker cones. I had a significant issue with my D2 and kevlar breakup-distortion. It made the upper mids sound harsh and distorted in comparison with the new D3 models.