AMP120 is designed for use in permanent commercial sound installations. It includes separate treble and bass controls, microphone, telephone, and program input with built-in program-muting circuitry. Inputs and outputs are via dependable screw terminals, RCA jacks, or XLR inputs. It is ideally suited for applications such as restaurants, country clubs, halls, sports venues, factories, retail stores, warehouse, churches, transportation facilities, and other public areas.