I mentioned modding only as a means I took to fine tune and tweak a certain headphone to my liking and I agree that there are synergy to be found between different source and driver combination. I responded to
@audiocroissant comment on the sibilant and thought I share my experience with this headphone but I never brought up any issue with technicalities on the d8k pro only qualms wth it are strictly the midrange dip and, just on the pro model, sibilant highs
For reference, I did try using several amps including but not limited to the ha300, starlett, studio b, hpa4, cma12,ha6a to a mix of dacs like the bifrost 2, rme, hugo 2, tt2, matrix ess dac and rockna wavedream sig but it still sounds a tad thin and slightly grating in the treble. Most amps are matched specifically to add more bloom to the midrange but it just did not work for me. Again ymmv.