Description
The AA50PHD is a versatile four-channel mixer amplifier designed specifically for distributed audio systems, business paging, background music (BGM), small to medium speech privacy systems, and setups requiring music on hold (MOH) with paging functionality. This amplifier features one microphone/line input and three stereo line inputs, making it adaptable to various input sources like paging microphones, media players, and digital music platforms. A standout feature is its exclusive automatic system test, the Push Here Diagnostic (PHD), which checks loudspeaker lines for wiring and impedance issues once connected. This ensures that the loudspeaker settings do not surpass the amplifier’s power rating and verifies that no loudspeakers are mistakenly set at 8Ω or have wiring shorts.
The amplifier also boasts Remote Input Selection and Remote Level Control, enabling integrators to connect a remote wall plate for easy input selection and volume adjustment up to 200 feet away. Key features include delivering 50W output power into 25V, 70.7V, or 4Ω speaker configurations, a rear-mounted DIP switch for zone output customization, and mute functionality for seamless paging applications. Additional functionalities include variable mute sensitivity control, balanced mic/line/tel input with phantom power, and automated diagnostic testing with the PHD feature. This mixer amplifier offers a comprehensive solution for integrators looking for efficient audio control and reliability in commercial audio environments.
