I think both HEDD Two and DCA E3 for now become the most "technical capable" headpone for around $2-3K price range. Both really excel to render the last micro detail/texture, with precise pin point imaging, accurate decay and still being natural in overall timbre.
HEDD Two has advantage in term of spaciousness, airy, with more linear presentation, while DCA E3 with more forward character bring more engaging feeling (especially in Midrange area), but also wit narrower presentation. DCA E3 is a little bit more forgiving in upper mid when need to play not-so-good recording though.
I just have "hard time" to choose which one should I pick as my third headphone lol.