I am trying to figure out how to access and use the EQ function in the Mac OS. I've read about this EQ and other AU settings in multiple sources, but have never seen a step-by-step guide or illustration of how to get it/them to work. I know that iTunes cannot access the EQ in the OS. I've read that the Vox player can, but my free version has never been able to load my music library, and it appears to give access only to its own, much more rudimentary, EQ settings. Any suggestions? Thanks in advance for any help.