New DFX 10 Audio Enhancer. Pump up your music! Incredibly Easy To Use. Simply turn on DFX and be amazed at the added sound clarity and punch that your media player provides. A DFX enhanced version of this player transforms the sound of an average PC into that of an expensive stereo system placed in a perfectly designed listening environment. DFX audio enhancement improves the sound quality of MP3, Windows Media, Internet radio, and other music files.