This is a pretty well respected App that's been around for a long time. I've not used it myself, so I can't really judge.
https://rogueamoeba.com/soundsource/
I use Boom 3D daily (2019 Macbook Pro).
I simply use it for the EQ so it has a few superfluous features I don't need but really happy with the output for my Fidelio X2s without an external amp.
I use Boom 3D daily (2019 Macbook Pro).
I simply use it for the EQ so it has a few superfluous features I don't need but really happy with the output for my Fidelio X2s without an external amp.