AtlasSound.com – 2 –
Owner’s Manual
AA50PHD
50W Mixer Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
Table of Contents
Important Safety Instructions .................................................................................................................. 3
Introduction ............................................................................................................................................ 5
Key Features .......................................................................................................................................... 5
Applications ............................................................................................................................................ 5
Front Panel Description ........................................................................................................................... 6
Rear Panel Description ............................................................................................................................ 7
PHD Diagnostic System Test ................................................................................................................ 10
Common Amplifier Failure Conditions .................................................................................................. 10
Trouble Shooting the Fault LED ............................................................................................................ 12
How to Calculate Load Impedance ....................................................................................................... 13
Remote Level Control ........................................................................................................................... 14
Remote Input Select (RIS) ..................................................................................................................... 15
Wiring the AA50PHD ............................................................................................................................ 16
Level Control Security Cover Option .................................................................................................... 16
Block Diagram ....................................................................................................................................... 17
Specifications ........................................................................................................................................ 18
Warranty ................................................................................................................................................ 20
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