dbx engineers have revisited their Advanced Feedback Suppression algorithm and made it work even better. The PA2 listens for and anticipates feedback and adjusts speaker output automatically before it even has a chance - never altering your sound.UPDATED WIZARD SETUP FUNCTIONS - Updated Wizards make initial set up easy, while ensuring speaker tunings and other settings are up-to-date.Wizard functions on the DriveRack PA2 guide you through easy, step-by-step processes to help you get the most from your loudspeaker system.Helps you easily configure level balancing, AutoEQ, Advanced Feedback Suppression, and provides access to built-in and constantly updating speaker tunings from most major speaker manufacturers.FEATURES: All New Setup Wizard, Streamlined AutoEQ, All New AFS (Advanced Feedback Suppression), Mobile Control (Android, iOS, Mac, Windows), dbx Compression, Graphic EQ, 8-Band Parametric EQ (adjusted when using the AutoEQ) Input.