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Summary of Contents for JBL CSA-2120
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Page 1: Operation Manual
CS Commercial Solution Series CSA-2120 CST-2120 Public Address System Operation Manual CSA-2120 Amplifier & CST-2120 Transformer... -
Page 2: Table Of Contents
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. -
Page 3: Important Safety Instructions
IMPORTANT SAFETY INFORMATION WARNING FOR YOUR PROTECTION READ THE FOLLOWING: KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING LIQUID AND NO OBJECT FILLED WITH LIQUID, SUCH AS VASES, SHALL BE PLACED ON THE APPARATUS The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products. - Page 4 IMPORTANT SAFETY INFORMATION U.K. MAINS PLUG WARNING If you want to dispose this product, do not mix it with gen- eral household waste. There is a separate collection system for used electronic products in accordance with legislation A molded mains plug that has been cut off from the cord is that requires proper treatment, recovery and recycling.
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Page 5: Jbl Declaration Of Conformity
EC - DECLARATION OF CONFORMITY Brand: Equipment Type: Amplifier and Transformer Model names: CSA-2120, CST-2120 We, Harman International, declare under our sole responsibility that the product, to which this declaration relates, is in conformity with the following standards. Report No. Description EN 55103-1:1997 EMC Compatibility –... -
Page 6: Welcome
1.0 Welcome The JBL CSA-2120 power amplifier is a professional tool designed and built for ® installed sound applications. The amplifier is a two-channel model providing simple analog amplification, with a switch-mode universal power supply. The amplifier includes a rack mounting kit. A transformer module can be purchased for use in high impedance distributed sound systems. -
Page 7: Setup
2.0 Setup 2.1 Unpacking Your Amplifier Please unpack and inspect your amplifier for any damage that may have occurred during transit. If damage is found, notify the transportation company immediately. Only you can initiate a claim for shipping damage. We will be happy to help as needed. - Page 8 Figure 2.2.1 Dimensions Unit: mm [inches] Figure 2.2.2 Mounting Kit long angle bracket flat bracket angle bracket Figure 2.2.3 Rack mounting an amplifier and CST-2120 Transformer Module Solution A: Rack Mounting an Amplifier and CST-2120 Transformer Module To install an amplifier and a CST-2120 transformer module in your cabinet system, refer to Figure 2.2.3 and follow the steps below: Align two modules side by side, with the front panel towards the same direction.
- Page 9 Figure 2.2.4 Rack Mounting Single Amplifier Solution B: Rack Mounting Single Amplifier To install single amplifier in your cabinet system, refer to Figure 2.2.4 and follow the steps below: Attach the long angle bracket to one side of the amplifier that you need to reserve as dummy module with screws.
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Page 10: Ensuring Proper Cooling
Figure 2.4 Input Wiring Note: Do not use both Euroblock and RCA audio input connectors on a single channel at the same time. 2.3 Ensuring Proper Cooling When using an equipment rack, mount units directly on top of each other. DO NOT block side air vents. -
Page 11: Choosing Output Wire And Connectors
CST-2120 transformer module with the jumper cable that shipped with the CST-2120 transformer module, see Figure 2.5.1. JBL recommends using pre-built or professionally wired, high-quality, two-conductor, heavy gauge speaker wire. Speakers wires should be twisted cable, if possible. To prevent the possibility of short-circuits, the wires should be stripped back no greater than 6 mm (1/4 inch), see Figure 2.5.2. -
Page 12: Wiring Your Audio System
Figure 2.6 Wiring Audio System Professional audio system Personal audio system 2.6 Wiring Your Audio System Typical input and output wirings are shown in Figure 2.6. INPUTS: Connect input wiring for both channels using either the RCA or the Euroblock input for each channel. OUTPUTS: Maintain proper polarity (+/–) on output connectors. -
Page 13: Connecting To Ac Mains
2.7 Connecting to AC Mains Connect your amplifier to the AC mains power source (power outlet) with the supplied AC power cord. First, connect the IEC end of the cord set to the IEC connector on the amplifier; then, plug the other end of the cord set to the AC mains. WARNING: The third prong of this connector (ground) is an important safety feature. -
Page 14: Operation
10. If the line voltage to the amplifier is too low, the low voltage protection function will be activated. The power indicator will be turned off. CAUTION: JBL is not liable for damage that results from overdriving other system components. -
Page 15: Front Panel Controls And Indicators
3.2 Front Panel Controls and Indicators Figure 3.2 Front View Level: Rotary level control, one per channel. Meter Group (one per channel): • Clip Indicator: Red LED turns at the threshold of audible distortion. • Signal Indicator: Green LED flashes when a very low-level signal (Threshold -40dB) is present at input. -
Page 16: Appendix A: Optional Item - Transformer Module
The rack-mountable JBL Commercial ® CST-2120 transformer module provides impedance and voltage matching from the CSA-2120 amplifier to drive 70V and 100V distributed speakers systems. This unit allows amplifiers without direct 70V or 100V output capability to drive distributed speaker systems designed to operate at those voltages. - Page 17 • Rack mounting single unit • Wall mounting 2. Connect the input of the transformer module to the output of the CSA-2120 amplifier with the shipped 4-pin cable. 3. Determine the proper transformer module tap to use, based on the desired...
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Page 18: Appendix C: Ac Power Draw And Thermal Dissipation
Appendix B: Amplifier Specifications Output Power (two channels at 1 kHz 4 Ohms 120 W power, THD+N<0.5%): 8 Ohms 120 W Frequency Response +1/-1 dB (1 watt into 4 or 8 Ohms): Load Impedance: Rated for 4 or 8 Ohms Sensitivity (8 Ohms load): 1.4 Vrms Signal to Noise Ratio (below rated... -
Page 19: Appendix D: Contact Information
For additional information, please consult JBL Professional Customer Service, your system installer or retailer. On The World Wide Web: www.jblcommercialproducts.com Professional Contacts, Outside the USA: Contact the JBL Professional Distributor in your area. A complete list of JBL Professional international distributors is provided at our U.S.A. Website: www.jblpro.com... - Page 20 JBL Commercial 8760 South Sandy Pkwy. Sandy, UT 84070 USA (801) 566-8800 Part Number: 5009280 Issue: 01/12...