tl;dr: Recommend an alternative to the Holo Audio May KTE and Bliss KTE stack that would be most likely to "convince" an "objectivist" upgrading from the FiiO K9 Pro ESS with binaural HRTF DSP of "R2R and class A goodness" or other subjective claims of improvement, particularly "huge...

Hello. In response to WaveTheory's recent "Cables Matter" videos, claiming such things as cables being able to "smooth out peaky treble" or some cables having innate "peaky treble", and their original four similarly named videos covering the possible science behind the audibility of cable...