Extron electronic MPA 401 manual Setting Input Level, Setting Bass and Treble

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Setting Input Level

Setting Input Level

LEVEL

BASS

TREBLE

 

Adjust the input level as follows:

1.

If necessary, unplug the remote connector from the

MPA 401

 

 

unit.

 

 

 

MINI POWER AMPLIFIER

2.

If connecting the amplifier to a system

with adjustable

 

 

 

volume, set the volume to its lowest point. Then adjust the level potentiometer fully

 

counterclockwise to its minimum setting.

 

 

3.

Set the system volume to its maximum level. No sound should come out.

4.

Slowly increase the amplifier level until

sound distortion starts to occur. Lower the level

 

slightly until the distortion disappears. This setting ensures that, whatever the system

 

volume setting may be, no clipping occurs.

 

 

Setting Bass and Treble

Adjust the bass and treble as follows:

1.Use the bass potentiometer to increase or decrease the bass shelving ±10 dB at 100 Hz and below.

2.Use the treble potentiometer to increase or decrease the treble shelving ±10 dB at 10 kHz and above.

NOTE: Turning the bass or treble potentiometers counterclockwise will decrease the output at the specified frequencies. Turning the potentiometers clockwise will increase the output. When the potentiometer is at the center detent, flat response is achieved.

MPA 401-70V and MPA 401-100V • Setup and Operation

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Contents Mini Power Amplifiers MPA 401 SeriesUser Guide AudioSafety Instructions English Safety InstructionsChinese Simplified（简体中文） Instructions de sécurité FrançaisFCC Class B Notice Notifications Specifications AvailabilityConventions Used in this Guide Setup and Operation ContentsIntroduction Rear Panel and CablingMPA 401-70Vand MPA 401-100V Contents Important Safety Instructions Important Safety InstructionsMPA 401-70Vand MPA 401-100VFeatures IntroductionFigure 1. Typical Application for the MPA MPA 401-70Vand MPA 401-100VDescriptionMPA 401-70Vand MPA 401-100V Introduction MPA 401-70Vand MPA 401-100VFeaturesRemote Input Connector Speaker Connections Rear Panel Power Input Audio InputsRear Panel and Cabling Rear PanelPower Input Audio Inputs Remote Input Port Wiring for remote controlPage Speaker Connections Front Panel Features Setup and OperationFront Panel Features Setting Input Level Setting Bass and Treble Remote Control OptionsSetting Bass and Treble Setting Input LevelMPA 401-70Vand MPA 401-100V Setup and Operation Remote Control OptionsExtron MPA Extron SI 3CT LPAmplifier Enters Standby Mode Too Early TroubleshootingAmplifier Fails to Exit Standby Mode Promptly Tabletop Placement Plenum PlacementReference Material MountingUnder-desk, Through-desk,and Projector Mounting Rack Mounting ProcedureExtron Warranty
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