Bongiovi DPS Audio Enhancer Plug-In for iTunes for Mac

From Bongiovi Acoustics:

The DPS Audio Enhancer Plug-In will optimize the sound of your Macintosh computer and its accessories such as auxiliary speakers and headphones. Improve brightness, clarity, and presence while experiencing deeper, more resonant bass. The DPS Plug-In also compensates for differences in volume between songs. It optimizes music, movies, television and spoken word and dramatically improves the playback of compressed audio files (mp3, AAC etc.). The patented DPS technology analyzes the audio signal in real-time and digitally re-masters it for playback on your computer. The user-friendly control panel enables you to select your favorite "Custom Tuning Profiles" that extend the frequency response of your built-in computer speakers or any other audio accessories that you connect to your computer. Each profile contains the settings for over 120 calibration points. The DPS iTunes Plug-In comes loaded with custom profiles for the internal speakers of all Apple computer models as well as multiple "City" profiles for external speaker devices and headphones that you may connect to your Mac. It's easy... Push the Button, Feel the Power! Using the DPS Plug-In is as simple as loading your favorite profiles into the settings menu and activating it on the control panel.

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