Operation Manual
CTs 2-Channel Power Amplifiers
page 4
Important Safety Instructions .......................................................... 2
Declaration of Conformity .............................................................. 3
1 Welcome ...................................................... 5
1.1 Features ............................................................................. 5
2 How to Use This Manual .................................... 6
3 Setup ........................................................... 7
3.1 Unpack Your Amplifier ....................................................... 7
3.2 Install Your Amplifier ......................................................... 7
3.3 Ensure Proper Cooling ....................................................... 7
3.4 Choose Input Wire and Connectors .................................... 8
3.5 Choose Output Wire and Connectors ................................. 8
3.6 Wire Your System .............................................................. 9
3.6.1 Dual 8/4/2 Mode ....................................................... 9
3.6.2 Bridge-Mono 16/8/4 Mode ........................................ 9
3.6.3 Dual 70V/100V Mode ................................................ 10
3.6.4 Bridge-Mono 140V/200V Mode ................................ 10
3.6.5 Dual Mode with “Y” Input .......................................... 11
3.7 Connect to AC Mains ......................................................... 12
3.8 Startup Procedure .............................................................. 12
4 Operation ...................................................... 12
4.1 Precautions ........................................................................ 12
4.2 Front Panel Controls and Indicators ................................... 13
4.3 Back Panel Controls and Connectors ................................. 14
5 Advanced Features and Options ...........................15
5.1 Protection Systems ............................................................15
5.1.1 Thermal Level Control (TLC) .....................................15
5.1.2 Junction Temperature Simulation (JTS) .....................15
5.1.3 Fault ..........................................................................15
5.1.4 High-Pass Filters ......................................................15
5.1.5 Low-Pass Filters .......................................................15
5.1.6 AC Under/Over Voltage Protection ............................15
5.1.7 Circuit Breaker ..........................................................15
5.1.8 DC Output Servo .......................................................15
5.1.9 Inrush Limiting ..........................................................15
5.1.10 Variable-speed Fans ................................................15
5.2 Advanced Features .............................................................15
5.2.1 Switching Power Supply ...........................................15
5.2.2 Input Compressor .....................................................15
5.2.3 Sleep Circuit ..............................................................15
5.2.4 Input Sensitivity Switches .........................................16
5.3 Options ..............................................................................16
5.3.1 Nominal Attenuation Settings ....................................17
6 Troubleshooting...............................................18
7 Specifications .................................................20
8 Service .........................................................24
8.1 Worldwide Service .............................................................24
8.2 US and Canada Service.......................................................24
8.2.1 Service at a US or Canada Service Center .................24
8.2.2 Factory Service .........................................................24
8.2.3 Factory Service Shipping Instructions .......................24
8.2.4 Crown’s Profit Protection Plan ...................................24
9 Warranty........................................................25
Crown Factory Service Information Form .......................................27
Table of Contents