I just tested SoundSource because I was interested in the menu bar metering. That worked as I had hoped, but I also noticed they had something called Headphone EQ. After a bit of clicking around, I found presets for my AirPods Max, three in total. They lighten the bass-heavy sound and provides a different listening experience.
You can test SoundSource for free, with 20 minutes worth of use before audio degrades. You can rinse and repeat for more minutes—as your patience allows. Installing the required ACE kernel extension requires a bit of surgery, but worked fine on the latest beta.
You can test SoundSource for free, with 20 minutes worth of use before audio degrades. You can rinse and repeat for more minutes—as your patience allows. Installing the required ACE kernel extension requires a bit of surgery, but worked fine on the latest beta.