The Atlas AA200PHD 6-Input 200W Amplified Mixer is a 6-input channel mixer amplifier designed for distributed business paging and background music (BGM) systems, medium-to-large speech privacy systems, and in applications where music on hold (MOH) and paging is required. With four microphone/line input and two stereo line inputs, the AA200PHD Amp can accommodate a variety of input sources including paging microphones, media players, and digital music receivers. The AA200PHD operates on 110-120 VAC for the US market.

The AA200PHD Amp includes an automatic system test, the Push Here Diagnostic (PHD). The PHD button is designed to check the connected speaker lines for wiring and impedance errors. This test can be activated once all speakers are connected and the circuit automatically verifies that the attached speakers' tap settings do not exceed the amplifier's rated power, no speakers are mistakenly tapped at 8 ohms, and the speaker wire is free from shorts.

The amp also incorporates a Remote Input Selection and Remote Level Control feature that allows the integrator to use the WPD-RISRL remote wall plate (not included), which lets the user select the input and adjust the volume from that wall plate up to 200’ from the amplifier.

The AA200PHD Amp provides 200W output power into 25/70.7V, or 4-ohm speaker systems. A rear-panel DIP switch allows for creation of Zone 2 output mix using any or all of inputs 1-4. Unit can also be set up to mute Inputs 2 through 6 on signal from Input 1 for paging applications where other input sources need to be muted during a page. Inputs 1 to 4 are either Mic or Line input selectable and phantom power is an option when using them as a microphone input.