Dual DPA250 Troubleshooting Guide download pdf (Page 7)

DPA250 INSTALLATION

Configuration/Setup

Theinputlevelcontrol(gain)isusedtoobtainthebest

possiblematchbetweentheheadunitaudiooutputand

theamplifierinput.Beginbyturningtheinputlevelcontrol

fullycounterclockwise.Next,turnuptheheadunitvolume

controlaround3/4ofthewayup.Adjusttheinputlevel

controlclockwiseuntilaudibledistortionisheard,then

slightlycounterclockwisetoprovidethebestmatch.

Repeatforallinputlevelcontrols.

Thecrossoverisusedtofilteroutfrequenciesaboveor

belowacertainpoint.ChooseLPFwhenusingtheamplifier

withsubwoofers,orFULLwhenusingwithcoaxial-type

speakers.

Note: Choose FULLwhenusingtheamplifierinstereo/

bridgedsimultaneousmode.Inthismode,passive

crossoversarerequired.Failuretousethecorrectpassive

componentsmaydamagetheamplifierand/orspeakers.

Consultaqualifiedprofessionalforrecommendations.

Thiscontrolallowspreciseadjustmentofthecrossover

frequencyfrom50Hz~300Hz.

Thiscontrolprovidesadditionalboost@45Hzwhenused

withsubwoofers.Adjustthiscontrolwithcaution-as

improperusecandamagespeakers!

Thiscontrolprovidesadditionalboost@5kHzwhenused

withsubwoofers.Adjustthiscontrolwithcaution-as

improperusecandamagespeakers!

ThePOWERLEDindicatorilluminatesgreenduringnormal

operation.

ThePROTECTLEDindicatorilluminatesredwhenthe

amplifier detects a fault.

Input level Control

Crossover Mode

Crossover Frequency

Control

Bass Boost

Treble Boost

LED Indicators

1 2 3 4 5 6 7 8 9 10 11 12

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Dual DPA250 Troubleshooting Guide Page 7