JBL CSMA2120 Stereo Amplifier User Manual


 
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This manual does not include all of the details of design, production, or variation of the equipment. Nor does it
cover every possible situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate as of the publication date. However, updates to
this information may have occured.
Trademark Notice: JBL is registered trademark of JBL International. Other trademarks are the property of their
respective owners.
© 2013 JBL Commercial, 8760 South Sandy Parkway, Sandy, UT. All Rights Reserved.
Contents
Important Safety Instructions .......................................................................... 3
JBL DECLARATION OF CONFORMITY .......................................................... 5
1.0 Welcome ................................................................................................... 7
1.1 Features ................................................................................................. 7
1.2 Front Control Panels and Indicators ...................................................... 8
1.3 Rear Panel Controls and Connectors - Four Channel............................ 9
1.4 Rear Panel Controls and Connectors - Eight Channel............................10
2.0 Setup ........................................................................................................12
2.1 Unpacking Your Amplifier ......................................................................12
2.2 Installing Your Amplifier .........................................................................12
2.3 Ensuring Proper Cooling .......................................................................17
2.4 Choosing Input Wire and Connectors ...................................................17
2.5 Output Wiring and Connectors .............................................................18
2.6 Wiring Your Audio System .....................................................................19
2.7 Connecting to AC Mains .....................................................................20
2.8 Protecting Your Speakers .....................................................................20
2.9 Startup Procedure .................................................................................20
3.0 Operation ..................................................................................................21
3.1 Precautions ............................................................................................21
3.2 Input Routing..........................................................................................22
3.3 High-Z Switch .........................................................................................22
3.4 Phantom Power ......................................................................................22
3.5 VOX Ducking ..........................................................................................22
3.6 Priority Muting ........................................................................................23
3.7 Remote Volume Control .........................................................................23
3.8 Sleep Mode ............................................................................................23
3.9 AUX Output ............................................................................................23
4.0 Troubleshooting ........................................................................................24
Appendix A: Target Performance Specifications ............................................25
Appendix B: Block Diagram ...........................................................................26
Appendix C: Contact Information ....................................................................28