Zensō
Major Contributor
Systemwide EQ on Mac OS has always been a bit of a pain to set up. This may not be news to some of you, but the SoundSource audio app on Mac OS has a huge collection of headphone EQ profiles built in, from Oratory1990, Crinacle, Innerfidelity, Rtings, and Headphone.com. It’s easy to set up and it has a lot of other useful functions. I have no affiliation with SoundSource, was just excited to run across this simple solution for EQing headphones on the Mac. https://rogueamoeba.com/soundsource/