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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 ........................................................

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    3.4 Phantom Power ........................................................

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    3.5 VOX Ducking ............................................................

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    3.6 Priority Muting ..........................................................

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    3.7 Remote Volume Control ...........................................

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    3.8 Sleep Mode ..............................................................

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    3.9 AUX Output ..............................................................

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4.0 Troubleshooting ........................................................................................24
 Appendix A: Target Performance Specifications ............................................25

  Appendix B: Block Diagram ...........................................................................26
  Appendix C: Contact Information ....................................................................28

Summary of Contents for CSMA 180

Page 1: ...CSMA 180 CSMA 1120 CSMA 240 CSMA 280 CSMA 2120 Commercial Series Mixer Amplifier Operation Manual CSMA Mixer Amplifiers CSMA Commercial Series...

Page 2: ...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 Unpac...

Page 3: ...nnect this equipment only to the power source indicated on the equipment rear panel To reduce the risk of fire or electric shock refer servicing to qualified service personnel or equivalent If connect...

Page 4: ...ix it with gen eral household waste There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment recovery and recycling Private hous...

Page 5: ...Limitation of Voltage Fluctuations and Flicker in Low Voltage Supply systems Rated Current less than or equal to 16A EN 55022 2010 Limits and Methods of Measurement of Radio Disturbance Characteristi...

Page 6: ...6...

Page 7: ...e control using the JBL CSR V control module 1 1 Features 4 or 8 inputs with 1 or 2 outputs respectively Ideal for commercial and industrial use System may be expanded by adding JBL Commercial Series...

Page 8: ...ll light green with signal presence while red indicates clipping i e the signal has reached the threshold of audible distortion E Power Switch F Illuminated ring around the power switch Green indicate...

Page 9: ...ut Ch2 4 I Dual RCA Input Connector Stereo unbalanced sources will be summed together Ch2 4 J Priority Input Connector 5 pin Euro block includes 3 pins for a balanced input as well as two pins that wh...

Page 10: ...HE PLUG MUST BE MAINTAINED 1 CH1 TO AMP2 2 CH2 TO AMP2 3 CH3 TO AMP2 4 CH4 TO AMP2 5 AMP1 Hi Z 6 PHANTOM 7 CH5 TO AMP1 8 CH6 TO AMP1 9 CH7 TO AMP1 10 CH8 TO AMP1 11 AMP2 Hi Z 12 NC MONO SUM OUTPUTS CL...

Page 11: ...block connector for a balanced input source Ch 2 4 6 8 G Dual RCA Input Connector Stereo unbalanced sources will be summed together Ch 2 8 H Priority Input Connector 5 pin Euro block includes 3 pins...

Page 12: ...amplifier make sure you read and observe the Important Safety Instructions found at the beginning of this manual 2 2 Installing Your Amplifier CAUTION Before you begin make sure your amplifier is disc...

Page 13: ...A 2120 Figure 2 2 2 Mounting Kit long angle bracket CSMA180 CSMA1120 only flat bracket CSMA180 CSMA1120 only front angle bracket rear angle brackets rear flat brackets 218 44 mm 8 6 in 303 4 mm 11 9 i...

Page 14: ...flat brackets to each side of the rear of the amplifier assembly with the screws provided 5 Install the assembly into the cabinet using the rack mount screws through the front angle brackets For detai...

Page 15: ...ed 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 the front angle brackets to each side of the front of the asse...

Page 16: ...he unit into the cabinet using the rack mount screws through the front angle brackets For details of installation in the chassis of the cabinet refer to the user guide of your cabinet 4 Align the rear...

Page 17: ...ct the amplifier balanced input by using the included Euroblock connectors see Figure 2 4 Unbalanced lines may be used but may result in hum or RF noise very long cable runs You can also use RCA conne...

Page 18: ...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 Suggested below are guidelines t...

Page 19: ...he appropriate 70V or 100V pin to speaker and the COM pin to speaker of the amplifier output connector The minimum impedance that can be driven from each output is provided in Appendix A Note that the...

Page 20: ...electrician 2 8 Protecting Your Speakers It s wise to avoid clipping the amplifier signal Not only does clipping sound bad but it can damage high frequency drivers The built in clip limiter prevents...

Page 21: ...the amplifier with the red Clip LEDs constantly flashing 7 Do not overdrive the mixer which will cause clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accuracy...

Page 22: ...in a 70Hz high pass filter CSMA180 and CSMA1120 utilizes a slide switch labeled HI Z while the CSMA240 CSMA280 and CSMA2120 allows each amplifier output to be independently configured using the DIP s...

Page 23: ...mote volume control can be implemented using a CSR V controller connected via an ethernet cable to the RJ45 connector on the back panel For the CSMA240 CSMA280 and CSMA2120 there are two connectors on...

Page 24: ...muting all except Ch 1 input POSSIBLE REASON The Hi Z switch is OFF while using the 70V or 100V outputs POSSIBLE REASON The power switch is OFF Note that while plugged in the amplifier will be in sta...

Page 25: ...z 20kHz Line Output 0 05 typical Signal to Noise Ratio Ref Rated Power mixer levels min master volume max A weighted 90dB Input Impedance nominal Mic 400 Line 20 k balanced RCA 50 k Phantom Power 27VD...

Page 26: ...Line Mic Input Gain Line Mic Input Gain Line Mic Input Gain Line Mic CH1 CH2 CH5 CH6 Phantom Power Mic Line Bal Mic Line Bal Mic Line Bal Mic Line Bal CH1 PTT CH5 PTT RCA MONO SUM RCA MONO SUM Gain 1...

Page 27: ...1 Master 1 Master 2 SPI 1 Clip 1 Limiter Limiter SPI 2 Clip 2 Bass Treble Bass Treble VCA VCA HPF HPF CH1 TO AMP2 CH5 TO AMP2 AMP2 enuation tenuation Tone Control Scaling Power AMP1 Output XFMR HPF CN...

Page 28: ...er 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...

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Page 32: ...Part Number 5025072 Issue 07 13 JBL Commercial 8760 South Sandy Pkwy Sandy UT 84070 USA 801 566 8800...

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