OWNER’S Guide | Parasound A 31 instruction

A 31

Three Channel Amplifier

OWNER’S GUIDE

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Parasound A 31 manual OWNER’S Guide

Contents

OWNER’S Guide Important Safety Instructions Table of Contents Thank You for Choosing Parasound Important Warranty informationParasound Staff Keeping Records for Future Reference AC Mains Voltage Unpacking Your a 31 & Placement GuidelinesUnpacking Your a Rack Mounting Your Parasound a Audio Input Connections Audio Connections Speaker Connections Speaker Wire Length and Gauge thicknessSpeaker Terminals Correct Speaker Polarity is Important When to Set the Gain Control Knobs Above or Below Normal Gain Control Settings Manual Position Turn On OptionsAudio Position Automatic on/off 12V Position Automatic on/off Volt Jacks AC Power Cord12V In Jack 12V Loop Out Jack On-Off Button Front Panel Operation Balanced and Unbalanced Lines Technically SpeakingGround Loops Eliminating Hum and Buzz Power Supply Bare Speaker Wire EndsParasound a 31 Design Overview Circuit Designed by John Curl Relay-Bypassed Soft Start Circuit Complementary ConfigurationAudio Circuit Path Topology Input Stage Class A-A/B Operation Output StageTotal Protection DC Servos Total Protection Relays Unit will not turn on Problems and RemediesNo sound from speakers Background Hum or Hiss Are You Having Difficulty? Repair or Service Specifications Parasound Products, Inc McKinnon Ave, San Francisco, CA