Turn On Bass Up On iTunes MAC OS 1. Click iTunes 2. Click Window 3. Click Equalizer 4. Select Version and Then On Good Luck Share this article :Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window) Related