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Focal Point MPA-2, Operating Manual

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MPA-­‐2   Operating   Manual                                                                                                                                                                              Ver.   1.2         2016   

                                                

4   

 

Input Switching

Input XLR

1st Stage Gain

Pre Amp

2nd StageGain

Pre Amp

Front Panel

Microcontroller

Mux

Mux

Function Sw's

Gain LED's

Non Inverting

Line Amp

Inverting

Line Amp

Servo

Servo

Servo

Servo

Mute Relay

Output XLR's

Encoder

Metering

Peak LED

+24V Low 

Noise

Regulator

-24V Low 

Noise

Regulator

+5V Low 

Noise 

Regulator

Power

Supply

+18V Servo

Metering

Regualtor

-18V Servo

Metering

Regulator

MPA-2 Internal Flow Diagram

+48V

Phantom

Supply

Summary of Contents for MPA-2

Page 1: ...TM Where Art Meets Science MPA 2 Dual Channel Class A Microphone Preamplifier Operating Manual...

Page 2: ...PA 2 Operating Manual Ver 1 2 2016 2 Contents Description Safety Information Installation Front Panel Controls Rear Panel Connections General Unit Operation Specifications Warranty Contact Information...

Page 3: ...se with low impedance microphones Adds an additional small resistance for low impedance microphones to optimize the transformer input impedance 20dB Input pad Polarity Inverts input polarity Located o...

Page 4: ...Mux Mux Function Sw s Gain LED s Non Inverting Line Amp Inverting Line Amp Servo Servo Servo Servo Mute Relay Output XLR s Encoder Metering Peak LED 24V Low Noise Regulator 24V Low Noise Regulator 5V...

Page 5: ...ser Do not allow fluids to leak into the top lid vent slots Damage to the unit will occur There are no user replaceable parts inside Do not attempt to service the MPA 2 There are dangerous voltages in...

Page 6: ...ke sure they are all the way in The two output connectors are paralleled and can drive two pieces of equipment Careful not to load down the MPA 2 with too low of an output impedance Dual outputs and b...

Page 7: ...MPA 2 Operating Manual Ver 1 2 2016 7 Front Panel Controls Gain control encoders Output Meters Gain Settings Power Supply LED s 48 LoZ Pad Polarity Switches Mute Switch AC Mains Switch...

Page 8: ...MPA 2 Operating Manual Ver 1 2 2016 8 Rear Panel Connections AC Select Fuse XLR Input Phantom Enable LED XLR Outputs...

Page 9: ...enabled the pushbutton LED will extinguish All LED s have a small standby current applied so they will appear very dim but never totally go out The Mute pushbutton will flash while the unit is bootin...

Page 10: ...Separate supplies for analog analog servos and logic control circuits Front panel control 8bit microcontroller Gain 20dB to 70dB in 2dB steps THD N 002 IMD THD 4 1ratio 003 Inter channel Phase Less t...

Page 11: ...ace or repair at it s option any internal or external parts found to be defective This is provided the product has not been misused or abused modified or shows physical damage Defects caused by misuse...

Page 12: ...Ver 1 2 2016 12 Contact Information TM Professional Audio Products Focal Point Audio Technology Sales and Technical Support 818 888 0388 Web www focalpointaudiotech com Email info focalpointaudiotech...

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