You could have downloaded Hajo Headphone Enhancer 1.7.3 for Mac from our application library for free. This Mac app was originally designed by Hajo Nils Krabbenhöft.
From the developer:
This application is designed to enhance any music and movie by simulating a virtual high-end 5.1 speaker system. It can simulate the acoustical effects that are caused by the sound-waves traversing the air and your head and your ear to ensure that your favorite track sounds on headphones just as amazing as it does on speakers.
You may want to check out more Mac applications, such as Headphoned, PDF Enhancer or Enhancer, which might be similar to Hajo Headphone Enhancer.
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