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CS Commercial Solution Series CSA-2120 Public Address System Amplifier User Guide 公共广播系统 功率放大器 用户手册...
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CSA-2120 Public Address System Amplifier User Guide...
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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.
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 ................
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 The symbols shown above are internationally accepted symbols that warn LIQUID AND NO OBJECT FILLED WITH LIQUID, SUCH AS VASES, SHALL BE PLACED ON THE APPARATUS of potential hazards with electrical products.
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IMPORTANT SAFETY INFORMATION U.K. MAINS PLUG WARNING If you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with legislation that requires A molded mains plug that has been cut off from the cord is unsafe. proper treatment, recovery and recycling.
Elkhart, IN 46517 USA declares that the product: Product name: Amplifier Product model: CSA-2120 conforms to the following Product Specifications: Safety: IEC60065-2001 (Audio, video and similar electronic apparatus -- Safety requirements) GB8898-2001 (Audio, video and similar electronic apparatus -- Safety requirements)
1.0 Welcome The JBL® CSA-2120 power amplifier (hereafter called as the amplifier) is a professional tool designed and built for installed sound applications. The amplifier is two-channel model providing simple analog amplification, with a switch-mode universal power supply. The amplifier includes a rack mounting kit. With the rack mounting kit, you can install the amplifier to a cabinet or wall.
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. Save the ship- ping carton as evidence of damage for the shipper’s inspection.
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Figure 2.2.1 Dimensions Unit: mm/inches Figure 2.2.2 Rack 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.
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Figure 2.2.4 Rack Mounting Single Amplifier Figure 2.2.5 Wall Mounting 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.
Figure 2.4 Input Wiring EUROBLOCK CONNECTORS RCA CONNECTORS MONO SUM UP STEREO Note: You are not recommended to use RCA connectors and Euroblock connectors to input sound signal 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.
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.
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. OUTPUTS: Maintain proper polarity (+/–) on output connectors. Connect Channel 1 loudspeaker’s positive (+) lead to Channel 1 positive (+) terminal of amp;...
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 ampli- fier; 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.
Turn the volume up to required level. 10. If the amplifier input voltage is too low, the low voltage protection function will be acti- vated. The power indicator will be turned off. CAUTION: JBL is not liable for damage that results from overdriving other system components.
3.2 Front Panel Controls and Indicators Figure 3.2 Front View Level: Detented 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.
® CST-2120 transformer module provides impedance and voltage matching from the CSA-2120 amplifier (with 4 Ohms or 8 Ohms outputs) 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.
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• 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 constant-...
Appendix B: Specifications Output Power (two channels at 1 kHz power, 4 Ohms 120 W THD+N<0.5%): 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 >100 dB...
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...