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DAPAudio MPA-4250, Manual

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MPA-4250

ORDERCODE D6122

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Summary of Contents for MPA-4250

Page 1: ...MPA 4250 ORDERCODE D6122...

Page 2: ...ed 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 h...

Page 3: ...udio MPA 4250 Product Guide Warning Safety instructions Operating Determinations Description Features Overview Front panel Overview Back panel Operation Connection Cables Maintenance Troubleshooting P...

Page 4: ...ution Never remove warning or informative labels from 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 swi...

Page 5: ...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 Allow time to...

Page 6: ...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 t...

Page 7: ...D lights up when the output is above 200mV 17 Ready LED The LED lights up when the unit is ready for use Backpanel Fig 2 18 Power amp in Mono RCA in Use this input if You don t want to use the build i...

Page 8: ...pressed a chime signal will be put out 32 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 fr...

Page 9: ...ution have the attenuators turned down during power up Dip switch settings The MPA4250 has 4 balanced combo inputs You can use these for connecting either jack or XLR cables Each input can be customiz...

Page 10: ...is 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 outpu...

Page 11: ...s 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...

Page 12: ...t in the fuse cover Gently pry up the fuse cover The fuse will come out 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 w...

Page 13: ...e 10dB at 10kHz Bass 10dB 100Hz Total harmonic distortion 0 5 1KHz nominal power capacity Signal noise ratio Mic 60dB Line 70dB Tel 60dB Priority for MIC 1 Sensitivity 30dB 5 Outputs for speakers 4 8...

Page 14: ...12 Appendix 1 Block diagram MPA 4250 Fig 9...

Page 15: ...2008 DapAudio...

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