JBL CSA-2120 Operation Manual

2
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.
© 2012 JBL Commercial, 8760 South Sandy Parkway, Sandy, UT. All Rights Reserved.
Contents
Important Safety Instructions .......................................................................... 2
JBL DECLARATION OF CONFORMITY .......................................................... 4
1.0 Welcome .................................................................................................... 5
1.1 Features ................................................................................................ 5
1.2 How to Use this Manual ......................................................................... 5
2.0 Setup ......................................................................................................... 6
2.1 Unpacking Your Amplifier . .................................................................... 6
2.2 Installing Your Amplifier ......................................................................... 6
2.3 Ensuring Proper Cooling ........................................................................ 9
2.4 Choosing Input Wire and Connectors ................................................... 9
2.5 Choosing Output Wire and Connectors ............................................... 10
2.6 Wiring Your Audio System .................................................................... 11
2.7 Connecting to AC Mains ......................................................................... 12
2.8 Protecting Your Speakers ..................................................................... 12
2.9 Startup Procedure ................................................................................ 12
3.0 Operation ................................................................................................ 13
3.1 Precautions .......................................................................................... 13
3.2 Front Panel Controls and Indicators .................................................... 14
3.3 Rear Panel Controls and Connectors .................................................... 14
Appendix A: Optional Item - Transformer module........................................ 15
Appendix B: Specifications ............................................................................ 17
Appendix C: AC Power Draw and Thermal Dissipation.................................. 17
Appendix D: Contact Information ................................................................... 18

JBL CSA-2120 Specifications

General

Output Power (two channels at 1 kHz power, THD+N<0.5%):	4 Ohms 120 W 8 Ohms 120 W
Frequency Response (1 watt into 4 or 8 Ohms):	+1/-1 dB
Load Impedance:	Rated for 4 or 8 Ohms
Sensitivity (8 Ohms load):	1.4 Vrms
Signal to Noise Ratio (below rated 8-Ohm power at 1 kHz, A weighted):	>100 dB
Crosstalk (Rated into 8 Ohms):	70 dB below rated from 20 Hz to 1 kHz; 50 dB below rated at 20 kHz
Input Impedance (nominal):	Balanced: 20 k Ohms Unbalanced: 10 k Ohms
Maximum Input Signal:	+20 dBu typical
AC Line Voltage and Frequency Confgi urations Available:	100-240 V, 50/60 Hz
Auto-Standby:	Go into auto-standby: 1 hour Recovery time: < 1 ms Recovery threshold: -60dBu
Operating Temperature:	0° C to 40° C at 95% relative humidity (non-condensing)

Weight and Dimensions

Dimensions (W x H x D) :	8.2” x 1.7 x 7” (209 mm x 44 mm x 178 mm)
Net Weight:	1 kg (2.1 lbs)
Shipping Weight:	1.5 kg (3.4 lbs)