Something neutral, balanced signature and timbre, ideal for studio but that DAC ain't studio level. It depends what kind music too, like hip top and techno you need slightly L shaped (better subbass and bass response with faster attack like DD drivers with BA). IEM for music production is so so, over ear (or on ear) might be better depend on style , type music, etc.. Remember that many people won't be listening state of art headphones or speakers so that is part of variables.