DBX DriveRack PA 2 x 6 PA Management Processor with Display & US. W/ 3 XLR Cables. New, improved Auto EQ algorithm ensures an extremely accurate, fast, and non-intrusive automatic EQ experience. Enhanced AFS algorithm for faster, more precise feedback elimination, without adversely affecting your system's tone. Wizard functions on the Drive Rack PA2 guide you through easy, step-by-step processes to help you get the most from your loudspeaker system.