Crown Audio CL Series - Manual (Page 4)

Operation Manual
CH and CL Series Power Amplifiers
page 4
Table of Contents
Important Safety Instructions .......................................................2
Declaration of Conformity ............................................................3
1 Welcome ..................................................... 5
1.1 Features ...........................................................................5
1.2 How to Use This Manual ..................................................5
2 Setup ......................................................... 6
2.1 Unpack Your Amplifier .....................................................6
2.2 Install Your Amplifier .......................................................6
2.3 Ensure Proper Cooling ....................................................6
2.4 Choose Input Wire and Connectors .................................7
2.5 Choose Output Wire and Connectors ...............................7
2.6 Switch Settings ................................................................8
2.7 Wire Your System ............................................................9
2.7.1 Models CH1 & CH2 Stereo Mode............................9
2.7.2 Models CH1 & CH2 140V Bridge Mode .................9
2.7.3 Model CH4 Stereo Mode ........................................10
2.7.4 Model CH4 Bridge Mode ........................................10
. 2.7.5 Models CL1 & CL2 Stereo Mode ............................11
2.7.6 Models CL1 & CL2 Bridge Mode ...........................11
. 2.7.7 Model CL4 Stereo Mode .........................................12
2.7.8 Model CL4 Bridge Mode ........................................12
2.7.9 All Models: How to Parallel the Inputs
in Stereo Mode ........................................................13
2.8 Connect to AC Mains .......................................................13
2.9 Startup Procedure ............................................................13
3 Operation .................................................... 14
3.1 Precautions ......................................................................14
3.2 Indicators .........................................................................18
3.3 Controls ...........................................................................18
4 Advanced Features and Options .............................. 19
4.1 Protection Systems ..................................................................19
4.1.1 Power Circuit Breaker .....................................................19
4.1.2 Proportional-speed or 3-speed Fan ................................19
4.2 Advanced Features ..................................................................19
4.2.1 BCA ® (CH4 and CL4 Only) .............................................19
4.2.2 Switching Power Supply with PFC (CH4 and CL4 Only) .19
4.3 Options .....................................................................................19
4.3.1 Input Sensitivity ...............................................................19
4.3.2 Crown SST Modules .......................................................19
4.3.3 Fault Monitoring ..............................................................21
4.3.4 Precision Detented Level Controls ...................................22
5 Principles of Operation ........................................ 23
5.1 CH1, CH2, CL1 and CL2 .........................................................23
5.2 CH4 and CL4 ...........................................................................25
5.2.1 Audio Signal Path ...........................................................25
5.2.2 Power Supply Operation .................................................27
6 Troubleshooting ................................................. 28
7 Specifications ................................................... 29
8 AC Power Draw and Thermal Dissipation ................... 34
9 Service ............................................................ 38
9.1 International and Canada Service ............................................38
9.2 US Service ...............................................................................38
9.2.1 Service at a US Service Center ........................................38
9.2.2 Factory Service ...............................................................38
9.2.3 Factory Service Shipping Instructions: ...........................38
9.2.4 Packing Instructions........................................................38
9.2.5 Estimate Approval............................................................38
9.2.6 Payment of Non-Warranty Repairs...................................38
10 Warranty ......................................................... 39
Crown Factory Service Information Form ............................................41