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Owner’s Manual
AA400PHD
400W Mixer Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
Introduction
Congratulations and thank you for purchasing the Atlas Sound AA400PHD mixer amplifier. This new and innovative professional grade
product has been designed from the ground up to include the important features that professional installation personnel require to meet
or exceed their customer’s expectations. Small, compact, and engineered for reliability, the Atlas Sound AA400PHD will provide years of
service and flexibility in today’s background music and paging applications.
Key Features
• 400W Into 25V/70.7V and 4Ω Loads
• Automated Diagnostic System Test (Push Here Diagnostic) for 70V Distributed Systems
• Four Balanced Mic/Line/Tel Inputs w/ Phantom Power
• Three Unbalanced, Summing Line Level Inputs
• Input Assignable Zone 2 Output
• Remote Level Control
• Remote Input Select (RIS)
• Preamp Out / Amp In for External Processors
• Variable Mute Sensitivity Control for Input 1
• Contact Closure Mute Terminals
• Rear Mounted DIP Switch Allows Mute Recieve for Inputs 2 Through 6
Applications
The Atlas Sound AA400PHD is the perfect choice 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.
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