MCM Custom Audio MPA-120 Operation Manual Download Page 23 | Manualshive

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Version V0.1

www.mcmelectronics.com

PUBLIC ADDRESS SYSTEM

800-543-4330

MCM Custom Audio and Stellar Labs products are warranted, by MCM Electronics,
against manufacturer defects for a period of one year from the original date of
purchase. This warranty is limited to manufacturer defects, in either materials or
workmanship. MCM Electronics, or any other worldwide divisions of
Premier Farnell PLC, are not responsible for any consequential or inconsequential
damage to any other component, structure or the cost of installation or removal
of said items.

For questions or specific information regarding warranty replacement or repair,
please contact:

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Summary of Contents for MPA-120

Page 1: ...SS SYSTEM MIC1 INPUT BASS TREBLE MIC2 TEL OUTPUT LEVEL 2 4 6 8 10 PROT POWER MIC1 AUX MASTER ON OFF 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 5 5 0 0 1 1 2 2 3 3 4 4 1 1 2 2 3 3 4 4 5 5 5 0 1 2 3 4 6 7 8 9 10 MIXER AMPLIFIER MPA 20 ON OFF MIC1 INPUT BASS TREBLE MIC1 MIC2 MIC3 AUX1 AUX2 TEL MASTER POWER 2 PROT TEMP 4 6 8 10 12 OUTPUT LEVEL MIXER AMP...

Page 2: ...CTIONS 17 4 18 19 20 21 22 NOMENCLATURE AND FUNCTIONS 2 1 FRONT PANEL 2 2 REAR PANEL 3 MACHINE OPERATION 5 APPLICATIONS 6 BLOCK DIAGRAM 7 SPECIFICATIONS 8 DIMENSIONAL DIAGRAM MPA 60 MPA 120 NOMENCLATURE AND FUNCTIONS 2 1 FRONT PANEL 2 2 REAR PANEL 3 MACHINE OPERATION 5 APPLICATIONS 6 BLOCK DIAGRAM 7 SPECIFICATIONS 8 DIMENSIONAL DIAGRAM ...

Page 3: ...result in fire or electric shock Be sure to replace the unit s terminal cover after connection completion Because high voltage is applied to the speaker terminals never touch these terminals to avoid electric shock Be sure to ground to the safety ground earth terminal to avoid electric shock Never ground to a gas pipe as a catastrophic disaster may result Avoid installing or mounting the unit in u...

Page 4: ...ing sooty smoke or steam as doing otherwise may result in fire or electric shock When the Unit is in Use Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury and or property damage In addition the object itself may fall off and cause injury and or damage Make sure that the volume control is set to minimum position before power is switched...

Page 5: ...hms AUX input 4 1 channel MIC1 balanced unbalanced input 2 5 5mv 1 2Kohms 5 1 channel TEL input sensitivity 350mV 10Kohms 5 Aux is default signal MIC1 input will override MIC2 and Aux inputs Telephone input will override both MIC1 MIC2 and AUX inputs 7 Built in priority functions Priority level is as follows 6 Built in treble and bass adjustment bass 10dB 100Hz treble 10dB 10KHz ...

Page 6: ...ORS Level meters 5 output level indicators 11 PROTECTION When the machine is in protection status this indicator will be lit in normal operation status the LED is off If the product is in protection status due to overheating overload or direct current the indication LED will be lit while the output relay will be disconnected Signal indicator is just used to indicate the use of input music signal I...

Page 7: ... except TEL 15 MIC input with phantom power MIC1 input compatible of XLR and stereo connector 16 MIC 1 PHANTOM 48V Power switch 17 MIC 2 MIC input MIC2 input of Microphone 18 AUX input AUX for extra equipment input 19 Line output Connect to other audio processing equipments 20 TEL INPUT 7 12 13 14 15 16 18 19 20 17 LINE OUT AUX MIC 2 120V 60Hz 40W T2AL 250V MUTE MIC 1 XLR 6 30 INPUT BAL UNBAL 48V ...

Page 8: ...0 245 70V LINE 3 1 SPEAKER CONNECTIONS 4 16 3 CONNECTIONS 70V 8 MPA 40 125 MPA 40 250 Balanced Connections Unbalanced Connections Tip Signal Sleeve Ground 3 2 The combination input accepts either XLR or 1 4 microphone plugs 1 4 sources can be either balanced or unbalanced as shown ...

Page 9: ... The four output connectors only can choose two connectors work together If voltage is 70V 100V the speakers must be with transformer and make sure the total power wattage of speaker is 15 less than the power wattage of amplifier GUIDANCE OF EXCLUDING ERRORS No voice output in normal condition All the wires are connected well but no voice output Cause 1 No power or wrong plug connection 2 Fuse is ...

Page 10: ...OUT R L COM AUDIO SOURCES LINK INPUTS XLR BAL 1 GND 2 HOT 3 COLD 1 2 3 1 2 3 OUTPUTS INPUTS POWER AMPLIFIER SPEAKERS LINE OUT AUX MIC 2 120V 60Hz 40W T2AL 250V MUTE MIC 1 XLR 6 30 INPUT BAL UNBAL 48V PHANTOM OUTPUTS COM 4 16 70V 100V TEL INPUT G ...

Page 11: ...6 BLOCK DIAGRAM COMP COMP GAIN AMP GAIN AMP GAIN AMP POWER AMP GAIN AMP 11 ...

Page 12: ...ne control Bass 100Hz Treble 10KHz Line Out Total harmonic distortion Cooling mode Power source Power consumption Net weight Dimensions mm 4 16 70V 100V MIC 66dB AUX 80dB 80Hz 16KHz 5mV 1Kohms 48VDC 350mV 10Kohms 10dB 1000mV 470ohms Less than 0 5 Air cooling 60W 276X245X70 4 5Kg MIC1 2 5mV 1Kohms AUX 350mV 10Kohms TEL 350mV 10Kohms Channel crosstalk Separation 50dB Muting function MIC1 prior to th...

Page 13: ...0 0 1 1 2 2 3 3 4 4 1 1 2 2 3 3 4 4 5 5 5 0 1 2 3 4 6 7 8 9 10 MIXER AMPLIFIER MPA 20 LINE OUT AUX MIC 2 120V 60Hz 40W T2AL 250V MUTE MIC 1 XLR 6 30 INPUT BAL UNBAL 48V PHANTOM OUTPUTS COM 4 16 70V 100V TEL INPUT G MIC1 INPUT BASS TREBLE MIC2 TEL OUTPUT LEVEL 2 4 6 8 10 PROT POWER MIC1 AUX MASTER ON OFF 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 5 5...

Page 14: ...t and power fluctuation for optimum reliability 5 VOX feature mutes AUX inputs when input is detected on MIC 1 Time Adjust control allows resumption of music to be sharp or gradual 6 Phantom power available on MIC 1 input for condenser type microphones 14 Aux is default signal MIC1 input will override MIC2 MIC3 and Aux inputs Telephone input will override MIC1 MIC2 MIC3 and AUX inputs 8 Built in p...

Page 15: ...TIONS 9 POWER Power indicator 10 LEVEL INDICATORS Level meters 6 output level indicators 11 PROTECTION 12 TEMP Temperature Indicator When the machine is in protection status this indicator will be lit in normal operation status the LED is off If the product is in protection status due to overheating overload or direct current the indication LED will be lit while the output relay will be disconnect...

Page 16: ... phantom power MIC1 input compatible of XLR and 6 3 MIC 17 Phantom power switch 18 MIC 2 MIC 3 MIC input MIC2 3 input of 6 3 MIC 19 TEL INPUT 20 AUX 1 AUX 2 AUX input AUX 2 3 for extra equipment input 21 Line output Connect to other audio processing equipments 16 14 13 15 16 18 19 20 21 17 120V 60Hz 100W T3 15AL 250V MIC2 MIC3 MUTE G TEL INPUT AUX2 AUX1 LINE OUT MIC 1 XLR 6 30 INPUT BAL UNBAL PHAN...

Page 17: ...0 81 70V LINE 3 1 SPEAKER CONNECTIONS 4 16 3 CONNECTIONS 70V 17 MPA 120 41 MPA 120 83 Balanced Connections Unbalanced Connections Tip Signal Sleeve Ground 3 2 The combination input accepts either XLR or 1 4 microphone plugs 1 4 sources can be either balanced or unbalanced as shown ...

Page 18: ...The four output connectors only can choose two connectors work together If voltage is 70V 100V the speakers must be with transformer and make sure the total power wattage of speaker is 15 less than the power wattage of amplifier GUIDANCE OF EXCLUDING ERRORS No voice output in normal condition All the wires are connected well but no voice output Cause 1 No power or wrong plug connection 2 Fuse is b...

Page 19: ...XLR BAL 1 GND 2 HOT 3 COLD 1 2 3 1 2 3 OUTPUTS INPUTS POWER AMPLIFIER SPEAKERS MIC 2 MIC1 MIC 3 TEL INPUT 120V 60Hz 100W T3 15AL 250V MIC2 MIC3 MUTE G TEL INPUT AUX2 AUX1 LINE OUT MIC 1 XLR 6 30 INPUT BAL UNBAL PHANTOM OUTPUTS COM 4 16 70V 100V COM COM www mcmelectronics com ...

Page 20: ...6 BLOCK DIAGRAM 70V COM 4 TO PA BASS TREBLE VOLUME PROTECT LEVEL INDICATOR POWER Z 120V 60Hz PT COM 100V COM EB EB LINE OUT MIC1 MIC1 MIC2 MIC3 AUX1 AUX2 TEL MUTE MUTE 20 ...

Page 21: ...wer AUX 1 input section AUX in 1Khz preamp out Input sensitivity impedance S N Frequency Response 3dB Tone control Bass 100KHz Treble 10KHz Pre Amp Out Total harmonic distortion Line level output Cooling mode Power source Power consumption Net weight Dimensions mm 4 16 70V 100V MIC1 2 3 5mV 600ohms AUX 350mV 10Kohms Better than 90dB 50Hz 18KHz 5mV 600ohms Better than 62dB 12dB 48VDC 350mV 10Kohms ...

Page 22: ...ER 2 PROT TEMP 4 6 8 10 12 OUTPUT LEVEL MIXER AMPLIFIER MPA 60 120V 60Hz 100W T3 15AL 250V MIC2 MIC3 MUTE G TEL INPUT AUX2 AUX1 LINE OUT MIC 1 XLR 6 30 INPUT BAL UNBAL PHANTOM OUTPUTS COM 4 16 70V 100V COM COM www mcmelectronics com ON OFF MIC1 INPUT BASS TREBLE MIC1 MIC2 MIC3 AUX1 AUX2 TEL MASTER POWER 2 PROT TEMP 4 6 8 10 12 OUTPUT LEVEL MIXER AMPLIFIER MPA 60 ...

Page 23: ...date of purchase This warranty is limited to manufacturer defects in either materials or workmanship MCM Electronics or any other worldwide divisions of Premier Farnell PLC are not responsible for any consequential or inconsequential damage to any other component structure or the cost of installation or removal of said items For questions or specific information regarding warranty replacement or r...

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