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Parasound
A 31 manual
Models:
A 31
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20 pages
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Specifications
Unpacking Your A 31 & Placement Guidelines
Warranty
Balanced XLR Pin Configuration
Speaker Wire Length and Gauge thickness
Problems and Remedies
Gain Control Settings
Channel Indicators
Safety
AC Power Cord
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Parasound Products, Inc. 2250 McKinnon Ave, San Francisco, CA 94124
415-397-7100 /
Fax
415-397-0144
www.parasound.com
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Contents
OWNER’S GUIDE
Three Channel Amplifier
Important Safety Instructions
Table of Contents
If You Require Assistance or Warranty Repair
INTRODUCTION
Important Warranty information
Thank You for Choosing Parasound
TheParasound Staff
Unpacking Your A 31 & Placement Guidelines
Placement Guidelines
AC Voltage Rewiring Technical Information
AC Voltage Warranty Exclusion
Rack Mounting Your Parasound A
Balanced/Unbalanced Selector Switches
Balanced XLR Pin Configuration
Audio Connections
Audio Input Connections
Speaker Connections
Speaker Terminals
Correct Speaker Polarity is Important
Speaker Wire Length and Gauge thickness
Gain Control Settings
Turn On Options
Manual Position
Audio Position Automatic on/off
12V Position Automatic on/off
AC Power Cord
12 Volt Jacks
12V In Jack
12V Loop Out Jack
Front Panel Operation
Channel Indicators
Hi Temp Indicator
On-OffButton
Ground Loops - Eliminating Hum and Buzz
Technically Speaking
Balanced and Unbalanced Lines
Bare Speaker Wire Ends
The Power Supply
Parasound A 31 Design Overview
Circuit Designed by John Curl
Complementary Configuration
Relay-BypassedSoft Start Circuit
Audio Circuit Path Topology
The Input Stage
The Output Stage
Class A-A/BOperation
Total Protection - DC Servos
Total Protection - Relays
Problems and Remedies
Total Protection - Current Overload
Total Protection - Fuses
Unit will not turn on
Warranty Repair
Are You Having Difficulty?
Repair or Service
Specifications
