HK AUDIO FA M I LY
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1.2. MPA 4150 ORDERCODE D6121 2272080408008 00909 nm SAR SE RRR SRR KS MPA 4150 trofe Pa Power AMPLIFIER 4x 1 SOW AUDIO 10 10 TREBLE SHOWELECTRONICES FOR PROFESSIONALS Congratulations You have bought a great innovative product from DAP Audio The DAP Audio MPA Series bring excitement to any venue Whether you want simple plug amp play action or a sophisticated show this product provides the effect you need You can rely on DAP Audio for more excellent audio products We design and manufacture professional audio equipment for the entertainment industry New products are being launched regularly We work hard to keep you our customer satisfied You can get some of the best quality best priced products on the market from DAP Audio So next time turn to DAP Audio for more great audio equipment Always get the best with DAP Audio Thank you DAP Audio DAP Audio MPA 4150 Product Guide OR M H H 2 O O mene ee en Or dE M UM O 2 CODE D Ie ANAO Rm 3 DESC POT NR EO E N 4 ES 4 ONES WRONT DON m E EE A A AEE AE EA A A 4 NONION BOCE DONA tro ee D 0 CT IN rra Tm Conneciion COPIES TRENT 7 Us AAA II II eas 10 9 28 9 RR K
3. e 4 independent channels e 4sets of bas treble and volume controls e LED level meters with protection indicator e 4 balanced inputs for Mic line and input sensitivity control e Telephone paging function Phoenix type terminal block input type e Low impedance 4Q 8Q and high impedance 25V 70V 100V output e Output power 150W RMS x 4 e Selectable input types COMBO TRS amp XLR and terminal type e Switchable input functions MIC Line input sensitivity Phase High pass filter 48V phantom power e Input mode selectable Four independent inputs e 19 Rack mount type 3HE size Frontpanel DAP MPA 4150 MULTIZ ONE PA POWER AMPLIFIER 4x TSOW DE 9 9 042 494 59 902 Fig 1 1 Aux 2 Use to adjust the aux 2 input level 2 Chime Use to adjust the chime level 3 Siren Use to adjust the siren level 4 Treble Use to adjust the treble frequencies for each channel to your preference 5 Master Use to adjust the volume level for each channel to your preference 6 Bass Use to adjust the Bass frequencies for each channel to your preference 7 Clip LED The LED lights up when the distortion exceeds 0 5 This means that the output signal is too strong so you should reduce the input signal 8 Prot LED Indicates that the amplifier is in protection mode This is either caused by a short circuit in the output load or a mismatch of impedance Check that the impedance of your speakers matches the output e Incase of
4. 10 Pr duct SOSCIIC GIONS ren rr Aid 1 Appendix 1 Block DIGO M ES 12 WARNING CAUTION Keep this system away from rain and moisture FOR YOUR OWN SAFETY PLEASE READ THIS USER MANUAL CAREFULLY BEFORE YOUR INITIAL START UP SAFETY INSTRUCTIONS Every person involved with the installation operation and maintenance of this system have to be qualified follow the instructions of this manual CAUTION Be careful with your operations With a dangerous voltage you can suffer a dangerous electric shock when touching the wires Before you initial start up please make sure that there is no damage caused by transportation Should there be any consult your dealer and do not use the system To maintain perfect condition and to ensure a safe operation it is absolutely necessary for the user to follow the safety instructions and warning notes written in this manual Please consider that damages caused by manual modifications to the system are not subject to warranty This system contains no user serviceable parts Refer servicing to qualified technicians only IMPORTANT The manufacturer will not accept liability for any resulting damages caused by the non observance of this manual or any unauthorized modification to the system Never let the power cord come into contact with other cables Handle the power cord and all connections with the mains with particular caution Never remove warning or informative labels from
5. for soeakers Outputs for soeakers Output power Input impedance Indicator Dimensions Weight DAP Audio MPA 4150 230 VAC 230V 6 3AT 115V 12A Sensitivity Mic 55dB balanced Line 16dB balanced High filter 150Hz 3dB Phantom 48V Telephone paging function sensitivity 120mV Mic 60Hz 12kHz 3dB Line 30Hz 18kHz 3dB Tel 120Hz 5kHz 3dB Treble 10dB at 10kHz Bass 10dB 100Hz lt 0 5 1KHz nominal power capacity Mic gt 60dB Line gt 70dB Tel gt 60dB Sensitivity 3OdB 15 40 80 25 70 150W x 4 at 40 80 25V 70V 20k Balanced PROT_ LED READY_LED CLIP_LED SIGNAL_ LED x 4 LED VU meter x4 483 x 356 x 133 mm LxWxH 22 74 kg Design and product specifications are subject to change without prior notice CC Email service highlite nl 11 Appendix 1 Block diagram MPA 4150 voice activated priority on off input 1 input 2 input 3 input 4 aux 1 aux 2 priority remote telephone er zx T E I al voice activated priority VOX channel mute ee EEE EN 3 5 STAINES e 12 3 5 ee neni ZNE 55 TH E chime chime yo zd pre amp out 12 power amp in channel 1 bass Treble Master Speaker out 1 channel 2 bass Treble Master Speaker out 2 channel 3 bass Treble Speaker out 3 channel 4 Speaker out 4 K y N DAP AUDIO 2008 DapAudio
6. sure that all components connected to the device have sufficient power ratings Otherwise distortion will be generated because the components are operated at their limits e Avoid ground loops Always be sure to connect the power amps and the mixing console to the same electrical circuit to ensure the same phase e fsystem is dropped or struck disconnect mains power supply immediately Have a qualified engineer inspect for safety before operating e lf fhe system has been exposed to drastic temperature fluctuation e g after transportation do not switch it on immediately The arising condensation water might damage your system Leave the system switched off until it has reached room temperature e This device falls under protection class Therefore it is essential to connect the yellow green conductor to earth e Repairs servicing and electric connection must be carried out by a qualified technician e WARRANTY Till one year after date of purchase OPERATING DETERMINATIONS If this system is operated in any other way than the one described in this manual the product may suffer damages and the warranty becomes void Any other operation may lead to dangers like short circuit burns electric shock etc You endanger your own safety and the safety of others Improper installation can cause serious damage to people and property Description of the device Features The MPA 4150 is a professional high power Public Adress Amplifier
7. the electrical system ground to one central point star system In this case the mixer can act as a central point e Before changing the ground always turn off your amplifier e Please read this manual carefully and keep it for future reference Remember that the amplifier has a better value on the market if you save the carton and all packing materials e Always operate the unit with the AC ground wire connected to the electrical system ground e Connecting amplifier outputs to oscilloscopes or other test equipment while the amplifier is in bridged mode may damage both the amplifier and test equipment e Do not drive the inputs with a signal level bigger than required to drive the equipment to full output e Insystem setup the amplifiers output power must be 50276 10076 more than the loaded loudspeakers rated power e Please turn off the power switch when changing the power cord or signal cable or select the input mode switch e In typical use please set the volume at OdB position e Sometimes when you want to send one signal to more than one amplifier you should use a signal distributor e f your Dap Audio device fails to work properly discontinue use immediately Pack the unit securely preferably in the original packing material and return it to your Dap Audio dealer for service e Allow time to cool down before cleaning or servicing e For replacement use fuses of same type and rating only e Prevent distortion Make
8. the unit Never use anything to cover the ground contact Do not insert objects into air vents Do not connect this system to a dimmerpack Do not switch the system on and off in short intervals as this would reduce the system s life Do not open the device and do not modify the device Do not open this device Risk hazardous radiation exposure Only use system indoor avoid contact with water or other liquids Avoid flames and do not put close to flammable liquids or gases Always disconnect power from the mains when system Is not used Only handle the power cord by the plug Never pull out the plug by tugging the power cord Make sure you don t use the wrong kind of cables or defective cables Make sure that the signals into the mixer are balanced otherwise hum could be created Make sure you use DI boxes to balance unbalanced signals All incoming signals should be clear Make sure that the available voltage Is not higher than stated on the rear panel Make sure that the power cord Is never crimped or damaged Check the system and the power cord from time to time e Make sure that the amplifier is turned down before turning the power on or off So you can avoid supersonic frequencies which could damage your speakers e Don t put your equipment next to TV radio etc because of interference or distortion e f you connect other parts of the system be careful of ground loops e The best way to avoid ground loops is connecting
9. don t want to use the build in mixer 19 Preamp ovt Mono RCA out Use this output if you don t want to use the built in power amplifiers 20 Aux 2 input Aux 2 stereo RCA input 21 Aux 1 input Aux 1 stereo RCA input 22 Combo input Combo input for channel 1 4 Accepts balanced or unbalanced inputs 23 Input 1 priority terminal Bridge the 2 terminal contact with a wire to disable the input 1 voice priority VOX function 24 Air cooling window Make sure these inlets remain unobstructed to allow unrestricted air flow 25 100V terminal Connect this terminal to the terminal of your 100V speaker s In case of using several speakers make sure all speakers are wired in parallel The total power rating of the 100V speakers for each channel should never exceed 150W 5 26 27 28 29 30 31 32 33 34 35 36 37 38 25V terminal Connect this terminal to the terminal of your 25V speaker s In case of using several speakers make sure all speakers are wired in parallel The total power rating of the 25V speakers for each channel should never exceed 150W 8 Q terminal Connect this terminal to the terminal of your 8 Q speaker s In case of using several speakers make sure that the total speaker load is 8 A The total power rating for each channel of the low impedance speakers should be at least 150W Common terminal low impedance Connect this terminal with the terminal of your low imp
10. edance speaker s GND Screw This screw offers a separate ground connection Can be useful in case of grounding problems AC Inlet with integrated fuse holder This connector is meant for the connection of the supplied main cord Connect one end of the power cord to the connector the other end to the mains then turn on the power switch 11 to operate the unit Note Please make sure that the supply voltage matches the operation voltage before connecting the unit to mains Replace the fuse only with a fuse of same specification 230V T6 3A 115V 12A Priority remote terminal Use this terminal for connecting a remote switch or relay contact Closing this contact will mute all inputs except input 1 If the chime button 12 is pressed a chime signal will be put out Siren remote terminal Use this terminal for connecting a remote switch or relay contact Closing the switch will activate the siren independent of the siren front switch 13 Telephone terminal Use this terminal to connect a telephone set for broadcasting emergency messages Impedance level switch Each input can be customized using 4 dipswitches You can select 4 options l Line Mic Use this switch to set the input impedance sensitivity to either Line or Microphone level Off position is Line On position is Mic 2 Phase lf this switch is in on position the phase will be inversed 3 High pass filter In on position a highpass filter will be activated T
11. he cutoff frequency is 200Hz 4 48V phantom power In on position the input will provide 48V phantom power for a condenser microphone Input terminal Input for channel 1 4 Accepts balanced or unbalanced inputs 70V terminal Connect this terminal to the terminal of your 70V speaker s In case of using several speakers make sure all speakers are wired in parallel The total power rating of the 70V speakers for each channel should never exceed 150W Common terminal high impedance Connect this terminal with the terminal of your high impedance speaker s 4 Q terminal Connect this terminal to the terminal of your 4 Q speaker s In case of using several speakers make sure that the total speaker load is 4 Q The total power rating for each channel of the low impedance speakers should be at least 150W Operation Installation Remove all packing materials from the MPA 4150 Check that all foam and plastic padding is removed Secure the equipment into a 19 rack Connect all cables Connecting Power Circuit Size Requirements The actual current draw the amplifier demands from the AC mains depends on many factors its load output level or the crest factor of its program material The power requirement is rated under typical music conditions with both channels driven so those peaks are just at the clipping point Make sure the mains voltage is correct and Is the same as printed on the rear of the amplifier Damage ca
12. ion on Connection cables page 9 Connecting Outputs Speakers are connected using terminal connectors See the examples below and following page Low impedance outputs You can use as many speakers as you want as long as the total impedance matches the amplifiers output Example 1 using the 40 output with two 80 speakers Total Load 40 80 Fig 3 Example 2 using the 40 output with four 40 speakers Total Load 4Q Fig 4 Total Load 8Q Fig 5 In a low impedance system the total speakerload should always match the amplifier impedance This to avoid overloading the amplifier The total speaker power should be at least the power of the amplifier to avoid damage to the speakers High impedance outputs If using either the 25V the 70V outputs or the 100V outputs note that all speakers should be wired in parallel The total power of all speakers summed together should never exceed the total power of the amplifier in a 25V a 70V or a 100V system Connection Cables Take care of the connector cables always holding them by the connectors and avoiding knots and twists when coiling them This gives the advantage of increasing their life and reliability which is always to your advantage Periodically check that your cables are in good condition that they are correctly wired and that all their contacts are in good condition a great number of problems faulty contacts ground hum discharges etc are caused ent
13. irely by using unsuitable or faulty cables Headphones Unbalanced mono 1 4 jack plug Balanced mono 1 4 jack plug Tip A Tip Tip hot ve Signal hot ve Ring Ring 3 Right signal cold ve Sleeve Sleeve Sleeve Ground Shield Ground Shield Ground Shield 2 DES Tip e Tip Tip Ring T Ring T Sleeve Jm Sleeve Sleeve e Strain relief clamp Strain relief clamp Strain relief clamp Compensation of interference with balanced connections Output Input Pin 1 Ground Shield Pin 2 Signal Signal Hum gt Positive gt Hum Signal Signal Hum Pin 3 Signal E d Negative gt Hum Signal 2 x Signal Signal 6 dB RFI and Hum Fig 7 Balanced use with XLR connectors 1 Ground Shield 2 hot ve 3 cold ve For unbalanced use PIN 1 and PIN 3 have to be bridged Fig 8 Maintenance The DAP Audio MPA series requires almost no maintenance However you should keep the unit clean Disconnect the mains power supply and then wipe the cover with a damp cloth Do not immerse in liquid Do not use alcohol or solvents Keep connections clean Disconnect electric power and then wipe the audio connections with a damp cloth Make sure connections are thoroughly dry before linking equipment or supplying electric power Replacing a Fuse Power surges short circuit or inappropriate electrical
14. power supply may cause a fuse to burn out If the fuse burns out the product will not function whatsoever If this happens follow the directions below to do SO 1 Unplug the unit from electric power source 2 Insert a flat head screwdriver into a slot in the fuse cover Gently pry up the fuse cover The fuse will come ouf 3 Remove the broken fuse If brown or unclear it is burned out 4 Insert the replacement fuse into the holder where the old fuse was Reinsert the fuse cover Be sure to use a fuse of the same type and specification See the product specification label for details Troubleshooting DAP Audio MPA series Amplifiers This troubleshooting guide is meant to help solve simple problems If a problem occurs carry out the steps below in sequence until a solution is found Once the unit operates properly do not carry out following steps 1 If the device does not operate properly unplug the device 2 Check the fuse power from the wall all cables etc 3 If all of the above appears to be O K plug the unit in again 4 If you are unable to determine the cause of the problem do not open the amplifier as this may damage the unit and the warranty will become void 5 Return the amplifier to your Dap Audio dealer 10 Product Specifications Model Power supply Fuse Inputs 4 Frequency response Tone control Total harmonic distortion Signal noise ratio Priority for MIC 1 Outputs
15. used by connecting the amplifier to improper AC voltage is not covered by any warranty Unless otherwise specified when ordered DAP audio amplifiers shipped to customers are configured as follows North America 120VAC 60Hz Europe 230VAC 50Hz Asia 220VAC 50Hz 60Hz Australia 240VAC 50Hz South America 120VAC 60Hz or 220VAC 50Hz Japan I00VAC 50Hz NOTE Always turn off and disconnect the amplifier from mains voltage before making audio connections Also as an extra precaution have the attenuators turned down during power up Dip switch settings The MPA4150 has 4 balanced combo inputs You can use these for connecting either jack or XLR cables Each input can be customized using 4 dipswitches You can select 4 options 5 Line Mic Use this switch to set the input impedance sensitivity to either Line or Microphone level Off position is Line On position is Mic 6 Phase If this switch is in on position the phase will be inversed 7 High pass filter In on position a highpass filter will be activated The cutoff frequency is 200Hz 8 48V phantom power In on position the input will provide 48V phantom power for a condenser microphone Connecting Inputs Use the XLR input connectors on the rear to supply audio signals to your DAP Audio MPA Series amplifier The connectors accept balanced and unbalanced audio connections The MPA Series amplifiers are configured standard with Pin 2 hot on XLR inputs For more Information see the sect
16. using the 25V 70V or 100V outputs this means that your total speaker power may never exceed 150W Using less power is no problem in 25V 70V or 100V systems e Incase you re using the low impedance outputs 4 or 8 Q make sure your speaker impedance matches the output impedance The total speaker power should be atleast 150W 4 9 Aux 1 Use to adjust the aux input level 10 Power LED Indicates that the amplifier is turned on 11 AC Power Switch This is the main Power switch Press to turn the amplifier on 12 Chime button Activates the Chime circuit If pressed in the chime can be started by using the priority contact at the backside 30 At the same time all inputs except input 1 will be muted 13 Siren button Pressing this button will start the siren 14 Input Use to adjust the input volume level for input 1 4 15 Air entrance MPA Series amplifiers are cooled by dual front mounted fans Cool air flows over the heat sinks And exhausts through the rear grills Make sure these outlets remain clear to allow unrestricted air flow 16 Signal LED The LED lights up when the output is above 200mV 17 Ready LED The LED lights up when the unit is ready for use Backpanel 8 19 20 25 22 QI 24 Igy 25v com sn an com 11 1 1 25V COM en 40 COM ty Omer A AS MATT OS oe o IU MD 69 696569 0969 DOS 18 Power amp in Mono RCA in Use this input if You
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