JBL Commercial Series CSA 140Z CSA 180Z CSA 1120Z CSA 240Z CSA 280Z CSA 2120Z Commercial Series Amplifier Operation Manual
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 ......................................
IMPORTANT SAFETY INFORMATION WARNING FOR YOUR PROTECTION READ THE FOLLOWING: KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products. The lightning flash with arrow point in an equilateral triangle means that there are dangerous voltages present within the unit.
IMPORTANT SAFETY INFORMATION U.K. MAINS PLUG WARNING A molded mains plug that has been cut off from the cord is unsafe. Discard the mains plug at a suitable disposal facility. NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET. Do not use the mains plug without the fuse cover in place. Replacement fuse covers can be obtained from your local retailer. Replacement fuses are 13 amps and MUST be ASTA approved to BS1362.
EC - DECLARATION OF CONFORMITY Brand: Equipment Type: Model names: JBL Commercial Audio Amplifiers CSA 140Z, CSA 180Z, CSA 1120Z, CSA 240Z, CSA 280Z, CSA 2120Z 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.
1.0 Welcome The JBL® Commercial Series of Amplifiers are a professional tool designed and built for Installed sound applications. There are both single channel and two channel models. They provide amplification with a choice of low impedance, 70V or 100V outputs. The product includes a rack mounting kit for installations to a cabinet. The system can be easily expanded with additional JBL Commercial Series products. Provisions are included for a remote volume control using the JBL CSR-V control module. 1.
1.2 Front Panel Controls and Indicators Figure 1.2 Front View of Single Channel Model A B CSA 1120z C D E A. Output Volume Control B. Power Switch C. Illuminated ring around the output volume control will light green with signal presence while red indicates clipping, i.e. the signal has reached the threshold of audible distortion. D. Tone Controls - Bass E. 8 and Treble potentiometers on each output channel Illuminated ring around the power switch.
1.3 Rear Panel Controls and Connectors Figure 1.3 Rear View - CSA 1120Z A B F C D E G A. AC Power Inlet – Detachable IEC B. Amplifier Output Connector C. Hi-Z Switch – Enables the 70V and 100V outputs and activates the 70Hz high pass filter D. Dual RCA Input Connector – Stereo, unbalanced sources will be summed together (Ch2-4) E. Audio Input Connector – 3 pin Euro-block connector, balanced input (Ch2-4) F.
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 shipping carton as evidence of damage for the shipper’s inspection. We also recommend that you save all packing materials so you will have them if you ever need to transport the unit.
43.3 mm [1.7 in] Figure 2.2.1 Dimensions CSA 1120z 218.44 mm [8.6 in] 303.4 mm [11.9 in] Figure 2.2.
Figure 2.2.3 Rack Mounting Two Units To install two units in your cabinet system, refer to Figure 2.2.3 and follow the steps below: 1. Align two modules side by side and upside down with the front panel towards the same direction. 2. Connect them with the flat bracket using the screws provided. 3. Attach the front angle brackets to each side of the front of the amplifier assembly using the screws provided. 4.
Figure 2.2.4 Rack Mounting A Single Unit To install a single unit, refer to Figure 2.2.4 and follow the steps below: 1. Determine which side of the rack opening will be used for the amplifier and attach the long angle bracket to the other side at the front of the amplifier using the screws provided. 2. Attach one of the front angle brackets to the other side of the assembly, as shown in the diagram, with the screws provided. 3.
2.3 Ensuring Proper Cooling When using an equipment rack, keep a minimum space of 4 inches (10cm) from the top surface of the unit. Close any open spaces in the rack with blank panels. DO NOT block any air vents. The side walls of the rack should be a minimum of 2 inches (5 cm) from the amplifier sides. The back of the rack should be open. 2.
2.5 Output Wiring and Connectors To drive distributed speaker systems designed to operate at 70V or 100V, connect to the corresponding output terminals. JBL recommends using prebuilt 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.
Figure 2.6 Wiring Audio System Professional audio system CSR-V LEVEL 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: You may use either low impedance or high impedance speakers. Always be sure to maintain the proper polarity when wiring speakers. Low Impedance Speakers should be driven using the +/- pins of the amplifier output connector.
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. When properly connected to a live power source, the power ring should illuminate with a green color. WARNING: The third prong of this connector (ground) is an important safety feature.
3.0 Operation 3.1 Precautions Your amplifier is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety: 1. Before use, your amplifier first must be configured for proper operation, including input and output wiring hookup. Improper wiring can result in serious operating difficulties. For information on wiring and configuration, please consult the Setup section of this manual. 2.
3.2 Hi-Z Switch When this switch is in the “OFF” position, the amplifier is configured to drive low impedance speakers, (4 Ohms ,minimum) The Hi-Z switch will switch in the built-in output transformer allowing the unit to drive 70V or 100V speaker systems directly when connected to the appropriate output terminals. As an added feature when driving the high impedance speakers, the system automatically switches in a 70Hz high pass filter. 3.
4.0 Troubleshooting CONDITION: No power to the amplifier so that the power ring is not illuminated. POSSIBLE REASON: The amplifier is not plugged into the power receptacle CONDITION: No sound or low sound. POSSIBLE REASON: The input signal is not present or at a very low level. POSSIBLE REASON: The Master Volume control is turned down. POSSIBLE REASON: A CSR-V is connected and turned down. POSSIBLE REASON: The Hi-Z switch is OFF while using the 70V or 100V outputs. POSSIBLE REASON: The power switch is OFF.
Appendix A: Target Performance Specifications Performance CSA 140Z CSA 180Z CSA 1120Z CSA 240Z CSA 280Z CSA 2120Z Rated Power into 4 Ω or 8 Ω; 1kHz, ≤ 0.5% THD 40W 80W 120W 40W 80W 120W Number of Output Channels 1 1 1 2 2 2 4Ω 60 Ω 120 Ω 4Ω 40 Ω 80 Ω Insertion Loss (70V & 100V outputs) 1 dB maximum Input Sensitivity (8 Ω Load) 1.4VRMS Frequency Response (8Ω, 20Hz - 20kHz) +/- 0.5dB Total Harmonic Distortion (THD) (@ Full rated power, 20Hz-20kHz) <0.
Appendix B: 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.
JBL Commercial 8760 South Sandy Pkwy.
