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4-Input 100-Watt Mixer Amplifier with Automatic System Test
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The AA100PHD is a four input channel mixer amplifier designed for distributed business paging and background music (BGM) systems, small to medium speech privacy systems, and in applications where music on hold (MOH) plus paging is required.

The AA100PHD provides 100-watts output power into 25V, 70.7V, or 4Ω speaker systems. Rear panel DIP switch allows for creation of Zone 2 output/output mix using any or all of the four inputs. Unit can also be set-up to mute Inputs 2, 3, and 4 based on signal from Input 1 for paging applications where other input sources need to be muted during a page. Input 1 and Input 2 are either Mic or Line input selectable and Phantom Power is an option when using either as a mic.


  • Rear Mounted DIP Switch Allows Mute Receive for Inputs 2 and 3
  • Contact Closure Mute Terminals
  • Variable Mute Sensitivity Control for Input 1
  • Preamp In for External Processors
  • Line Output
  • Remote Input Select (RIS)
  • Remote Level Control
  • Input Assignable Zone 2 Output
  • Two Unbalanced, Summing Line Level Inputs
  • Two Balanced Mic/Line/Tel Inputs w/ Phantom Power
  • Automated Diagnostic System Test (Push Here Diagnostic®)
  • 100W into 25V/70.7V and 4Ω Loads
  • Optional Rack Mount Kit Available, Model AARMK2-5


Power Output Max. Average Power @ 50Hz-15kHz with .5% THD, 4Ω 100W RMS
Frequency Response 50Hz - 15kHz
Connector Type 4 Position Phoenix 3.5mm Pitch
Weight 13lb
Height 3.66" (93mm)
Width 8.27" (210mm)
Depth 10.87" (276mm)
Voltage Compatibility 110V - 120V



Manuals & Technical Documents

SpecificationAtlas Audio-AA100PHD-Spec Sheet.pdf