JBL VMA1120, Operation Manual

Page 1: ...VMA1120 VMA1240 VMA260 VMA2120 Commercial Series 1 Channel 2 Channel Mixer Amplifier Operation Manual 1 VMA 160 1 2 3 4 MUSIC USB MASTER 1 USB 4 VMA 260 1 2 3 MUSIC 1 4 5 6 MUSIC 2 MASTER 2 MASTER 1 VMA Series ...

Page 2: ... 7 1 3 Rear Panel Controls Connectors VMA160 VMA1120 VMA1240 8 1 4 Rear Panel Controls Connectors VMA260 VMA2120 9 2 0 Setup 10 2 1 Unpacking Your Amplifier 10 2 2 Installing Your Amplifier 10 2 3 Ensuring Proper Cooling 13 2 4 Choosing Input Wire Connectors 13 2 5 Output Wiring Connectors 14 2 6 Wiring Your Audio System 15 2 7 Connecting to AC Mains 16 2 8 Protecting Your Speakers 16 2 9 Startup ...

Page 3: ...he risk of fire or electric shock refer servicing to qualified service personnel or equivalent If connected to 240V supply a suitable CSA UL certified power cord shall be used for this supply SAFETY INSTRUCTIONS NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD WARNING THIS APPLIANCE SHALL BE CONNECTED TO A MAINS SOCKET OUTLET WITH A PROTECTIVE EARTHING CONNECTION The cores in the ma...

Page 4: ...ollowing two conditions 1 This device may not cause interference and 2 This device must accept any interference including interference that may cause undesired operation of the device This device complies with Industry Canada s licence exempt RSSs Operation is subject to the following two conditions 1 l appareil ne doit pas produire de brouillage 2 l utilisateur de l appareil doit accepter tout br...

Page 5: ...luctuations 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 Characteristics of ITE Radiated Conducted Class B Limits EN 55103 2 2009 EMC Compatibility Product Family Standard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 2 Immunity EN 61000 4 ...

Page 6: ...CSR V control module 1 1 Features 5 or 8 inputs with 1 or 2 outputs respectively Ideal for commercial and industrial use System may be expanded by adding JBL Commercial Series Mixers or Commercial Series Amplifiers Euroblock RCA and TRS type input connectors available Independent Bass and Treble controls for each output channel VOX ducking during announcements Remote volume control capability usin...

Page 7: ...ing i e the signal has reached the threshold of audible distortion D Power Switch E Power on LED illuminates blue when power is switched on F Input 1 Front panel audio input capability via 1 4 TRS connector The two channel model includes a second similar input Input 4 G Media Player Controls H Tone Controls Bass and Treble potentiometers for each output channel I USB Audio Input J Bluetooth Key an...

Page 8: ... 2016DJ2941 HARMAN INTERNATIONAL 1718 W Mishawaka Rd Elkhart IN 46517 Apparatet må tilkoples jordet stikkontakt Apparaten skall anslutas till jordat uttag Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan CONFORMS TO UL STD 60065 CERTIFIED TO CSA STD C22 2 NO 60065 ATTENTION POUR RÉDUIRE LE RISQUE DE CHOCK ÉLECTRIQUE LA FICHE CENTRALE DE LA PRISE DOIT ÊTRE BRANCHÉE POUR MAINTENIR LA...

Page 9: ...CE COMPLIES WITH PART 15 OF THE FCC RULES OPERATION IS SUBJECT TO THE FOLLOWING CONDITIONS 1 THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE AND 2 THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION CAN ICES 3 B NMB 3 B C D F H G E A B I K L J M N Figure 1 4 1 Rear Panel VMA 260 A Amplifier output connectors B Remote volume connectors RJ 45 st...

Page 10: ...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 disconnected from the power source and all level controls turned completely down counterclockwise Note We recommend that any sensitive equipment be located at least 8 inches 20 cm away from the amplifier ...

Page 11: ...00 mm 17 00 in 401 00 mm 15 79 in 1 USB VMA 260 4 1 2 3 MUSIC 1 4 5 6 MUSIC 2 MASTER 2 MASTER 1 SIDE VIEW FRONT VIEW Figure 2 2 1 Dimensions Front Angle Brackets Rear Angle Brackets Rear Flat Brackets Figure 2 2 2 Mounting Kit ...

Page 12: ...ed 3 Install the 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 angle brackets with the proper holes at the rear of the cabinet and attach using rack mount screws 5 With the rear angle brackets to the outside of the flat brackets attach them each us...

Page 13: ...t the amplifier balanced input by using the included Euroblock connectors see Figure 2 4 1 Unbalanced lines may be used but may result in hum or RF noise if using very long cable runs You can also use RCA connectors to connect audio devices for example CD DVD player However do not use both Euroblock and RCA audio input connectors on a single channel at the same time NOTE Custom wiring should only ...

Page 14: ...res 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 1 Suggested below are guidelines to select the appropriate size of wire based on the distance from amplifier to speaker Check with local code as this may vary Distance Wire Size Up to 25 ft 7 6m 16AWG 26 40 ft 7 9 12 2m 14AWG 8 Ohm Spea...

Page 15: ...rustettuun pistorasiaan CONFORMS TO UL STD 60065 CERTIFIED TO CSA STD C22 2 NO 60065 ATTENTION POUR RÉDUIRE LE RISQUE DE CHOCK ÉLECTRIQUE LA FICHE CENTRALE DE LA PRISE DOIT ÊTRE BRANCHÉE POUR MAINTENIR LA MISE À LA TERRE CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK GROUNDING OF THE CENTER PIN OF THE PLUG MUST BE MAINTAINED CAN ICES 3 B NMB 3 B LEVEL CSR V CD OPTICAL SPK 1 2 VIRTUAL Figure 2 6 1 Wi...

Page 16: ...r 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 clipping Also avoid sending strong subsonic signals to the amplifier High level low frequency signals from breath pops or dropped microphones can blow out drivers You can switch to the HI Z mode whic...

Page 17: ... hazardous and invalidates all agency listings 6 Do not operate 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 and loudspeaker damage may result 8 Do not operate the amplifier with less than the rated load impedance Due to the amplifier s output p...

Page 18: ...ive 70V or 100V speaker systems when connected to the appropriate output terminals As an added feature when driving the high impedance speakers the system automatically apply a 70Hz high pass filter 3 3 2 Chime Function Turning chime ON will enable a chime sound at the onset of an announcement when priority muting is invoked See section 3 5 Priority Muting on the following page 3 3 3 Line Mic Gain...

Page 19: ...nd VMA1240 may use Input channel 2 as a priority channel muting all other channels when pins 4 and 5 are shorted using a switch closure The VMA260 and VMA2120 lets Input2 operate with priority over all inputs into output amplifier CH1 Similarly Input5 can exercise priority over all inputs into output amplifier CH2 Input2 will have priority over both amplifiers CH1 and CH2 if the routing DIP switch...

Page 20: ...te This may not work for some Bluetooth devices 8 Press the PLAY PAUSE key to pause or resume playing 9 To disconnect either press the Bluetooth Key or disable Bluetooth at the media player source device Note Play will resume automatically upon reconnect if disconnected by pressing the Bluetooth Key 10 Press the REC key to start recording Note Media player signals are not recorded Note Bluetooth s...

Page 21: ...rity over USB The default media player volume is maximum USB and Bluetooth signals cannot be recorded While playing from the USB or Bluetooth source the signal being played is interrupted momentarily when a chime tone is sounding in another channel Hidden functions are available by pressing and holding a media player key for more than 1 second then pressing and holding the Bluetooth key along with...

Page 22: ...SIBLE REASON Mixer channel inputs are turned down POSSIBLE REASON A Priority switch is closed muting all except the priority input POSSIBLE REASON The 70V 100V switch is OFF while using the 70V or 100V outputs CONDITION Distorted sound POSSIBLE REASON Input signal level is too high Please turn down the input level controls Note that the mixer amplifier should not be operated at a level that allows...

Page 23: ...output Power Amp Output 0 5 20Hz 20kHz Signal to Noise Ratio Ref Rated Power mixer levels min master volume max A weighted 76dB Input Impedance nominal Mic 400 Ω Line 20 kΩ balanced RCA 50 kΩ Phantom Power 27VDC Crosstalk reference rated power volume at mid position 1kHz 70 dB Nominal AC Line Voltages 100V 120V 220V 220 240V 50 60 Hz Minimum Load Impedance Low Impedance Output 70V Output 100V Outp...

Page 24: ...ion VOX PTT Attenuation VOX PTT Input 4 Input 5 Input 6 Music 2 TO CH2 TO CH2 TO CH2 TO CH2 TO CH1 TO CH1 TO CH1 TO CH1 Control Input 1 to Ch 2 CH1_PRIORITY CH2_PRIORITY CH1_PRIORITY CH2_PRIORITY Input 4 to Ch 1 Chime CH2 ON OFF BT USB to CH2 Input 2 PTT Input 5 PTT Input 1 Input 1 to Ch 2 Input 2 Input 2 to Ch 2 CH1_PRIORITY Input 3 Input 3 to Ch 2 Music 1 Music 1 to Ch 2 Input 2 to Ch2 CH2_CTRL_...

Page 25: ... Feedback MASTER VOLUME REMOTE VOLUME OUTPUT TRANSFORMER CH 1 100V 70V COMMON SPI CLIP VCA POWER AMP HPF Feedback REMOTE VOLUME OUTPUT TRANSFORMER CH 2 100V 70V COMMON SPI CLIP MASTER VOLUME TONE CONTROL Hi Z Switch MCU SDRAM DAC FLASH BT MODULE BT USB MCU SECTION CRYSTAL ...

Page 26: ... Input 2 PTT Input 2 Mic Line Bal Music Line Summed RCA VOX Attenuation VOX PTT CH1_PRIORITY VCA POWER AMP HPF TONE CONTROL Hi Z Switch Feedback MASTER VOLUME REMOTE VOLUME OUTPUT TRANSFORMER 100V 70V COMMON SPI CLIP MCU SDRAM DAC FLASH BT MODULE BT USB MCU SECTION CRYSTAL Input 3 Mic Line 1 4 Bal ...

Page 27: ...mer 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 28: ...JBL Commercial 10653 South River Front Parkway Suite 300 South Jordan Utah 84095 Part Number 5078447 A Issue 09 16 ...