Crown Audio 1201 User Manuals

Table of Contents

• Important Safety Instructions

  2
• 5 Advanced Features and Options

  14
• Declaration of Conformity

  3
• 5.1 Protection Systems

  14
• 1 Welcome

  5
• 5.1.1 ODEP

  14
• 1.1 Features

  5
• 5.1.2 Ultrasonic and Radio Frequency Protection

  14
• 1.2 Unpacking Your Amplifier

  5
• 5.1.3 Drive Protection

  14
• 2 How to Use This Manual

  5
• 5.1.4 Transformer Thermal Protection

  14
• 3 Setup

  6
• 5.1.5 Fuses and Circuit Breakers

  14
• 3.1 Unpack Your Amplifier

  6
• 5.2 Accessories

  15
• 3.2 Install Your Amplifier

  6
• 5.2.1 Cooling Fan Options

  15
• 3.3 Ensure Proper Cooling

  6
• 5.2.2 Input Connectors Option

  15
• 3.4 Choose Input Wire and Connectors

  7
• 5.3 Filter Cleaning

  15
• 3.5 Choose Output Wire and Connectors

  8
• 6 Principles of Operation

  16
• 3.6 Wire Your System

  9
• 6.1 Overview

  16
• 3.6.1 Stereo Mode

  9
• 6.2 Circuit Theory

  16
• 3.6.2 Bridge-Mono Mode

  9
• 6.2.1 Stereo Operation

  17
• 3.6.3 Parallel-Mono Mode

  9
• 6.2.2 Bridge-Mono Operation

  18
• 3.7 Set Input Sensitivity

  10
• 6.2.3 Parallel-Mono Operation

  18
• 3.8 Set Ground Lift Switch

  10
• 7 Troubleshooting

  19
• 3.9 Connect to AC Mains

  10
• 8 Specifications

  20
• 3.10 Startup Procedure

  10
• 9 AC Power Draw and Thermal Dissipation

  22
• 4 Operation

  11
• 10 Service

  24
• 4.1 Precautions

  11
• 10.1 Worldwide Service

  24
• 4.2 Controls, Indicators and Connectors

  12
• 10.2 US and Canada Service

  24
• 4.2.1 Front Panel Facilities

  12
• 10.2.1 Service at a US or Canada Service Center

  24
• 4.2.2 Rear Panel Facilites

  13
• 10.2.2 Factory Service

  24
• 10.2.3 Factory Service Shipping Instructions

  24
• 11 Warranty

  25
• Crown Factory Service Information Form

  27