User manual DUAL XPA4640
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Manual abstract: user guide DUAL XPA4640
Detailed instructions for use are in the User's Guide.
[. . . ] · seextremecautionwhendrillingholestoavoiddamagingfuellinesorexisting U vehiclewiring. · llamplifierinstallationsrequirepower, signalandspeakerwires(notincluded). A · namplifierinstallationkit(soldseparately)ishighlyrecommendedtofacilitatethe A installation. [. . . ] D InputSignal · heamplifier'sinputsignalconnectstotheheadunit'slowlevel(RCA)orhighlevel T (speakerwire)outputs. · owlevelinputsignaldeliverthebestperformance. Ifunavailable, usethehigh L levelinputs-wheninterfacingwithfactoryheadunitforinstance. CAUTION ·Donotusebothlowandhighlevelinputsatthesametime-connectonlyoneor the other. N
3
XPASERIESINSTALLATION
PowerandSpeakerConnections
XPA2500
1 8
2
3
4
5
6
7
XPA4640
1
7
2
3
4
5
6
7
1 2 3 4
LEDIndicator BassBoost CrossoverModeSwitch CrossoverFrequency
5 6 7 8
InputLevelControl HighLevelInputs LowLevelInputs InputModeSwitch
4
XPASERIESINSTALLATION
AudioInputsandControls
1
2
3
4
5
XPA2500
1
5
4
3
2
XPA4640
1 2 3
SpeakerConnection(s) Ground Connection RemoteConnection
4 5
+12VDCBatteryConnection Fuse(s)
5
XPASERIESINSTALLATION
TypicalWireRouting
MainPowerConnections
Connect+12V, GNDandREMwiresaccordingly. AsuitablefuseMUSTbeinstalledonthe +12Vleadwithin18"ofthebatteryforprotectionofthevehicle'selectricalsystem. FuseRating
Whenreplacingfuses, makesurenewfuse is the correct type and amperage. Using an incorrect fuse could damage the amplifier.
Power/GroundWireSize
Foroptimumperformance, useonlythewire sizelistedbeloworlarger. Makesuretouse thesamesizepowerandgroundwire.
XPA250025ampATOx1 XPA464025ampATOx2
XPA250010gauge XPA46408gauge
6
XPASERIESINSTALLATION
AmplifierConnections
SpeakerConnections
Connectspeakerwiresobserving polarity. Theminimumimpedance load for the XPA2500 and XPA4640 is 2 ohms stereo and 4 ohms bridged. Useofloadslowerthan these is not recommended and may cause amplifier damage. TheXPA2500andXPA4640can bewiredforstereo, bridgedor stereo/bridgedsimultaneous operation. 2Speakers(stereo) Subwoofer(mono)
TypicalStereoWiring
(2ohmsminimum)
TypicalBridgedWiring
(4ohmsminimum)
XPA2500speakerconnectionsshown
InputSignalConnections
LowLevelInput(RCA) Lowlevel(RCA)inputsignalispreferredforbestperformance. Typicaltrunk-mount amplifierinstallationsrequirea17-20footRCAcable. Mosttrucksandunder-seat applicationsrequirea6-9footRCAcable. UsingtwistedpairconstructionRCAcableswill minimize noise. HighLevelInput(SpeakerWire) Highlevelinputsshouldonly beusedwhenRCAoutputsare notavailablefromtheheadunit. Connecttheheadunitspeaker outputstothehighlevelinput connectorasshownbelow. The blackwire(signalreferenceground) mayormaynotrequireaconnection tochassisground-dependingon your particular installation.
CAUTION Donotusebothlowandhighlevelinputsatthesametime-connectonlyoneortheother. 7
XPASERIESOPERATION
Configuration/Setup
InputlevelControl Theinputlevelcontrol(gain)isusedtoobtainthebest possiblematchbetweentheheadunitaudiooutputand theamplifierinput. Beginbyturningtheinputlevelcontrol fullycounterclockwise. Next, turnuptheheadunitvolume controlaround3/4ofthewayup. Adjusttheinputlevel controlclockwiseuntilaudibledistortionisheard, then slightlycounterclockwisetoprovidethebestmatch. Select2CHmodeiftheheadunitonlyhas1pairofRCA outputs. PlugtheRCA'sfromtheheadunitintochannels 1/2or3/4. All4amplifierinputswillreceiveasignal. Select4CHmodeiftheheadunithas2pairsofRCA outputs. PlugtheRCA'sfromtheheadunitintochannels 1/2and3/4. CrossoverMode (XPA2500&XPA4640) Thecrossoverisusedtofilteroutfrequenciesaboveor belowacertainpoint. ChooseLPFwhenusingtheamplifier withsubwoofers, HPFwhenusingwithmidrange/tweeter combinations and FULLwhenusingwithcoaxial-type speakers. [. . . ] 1. Beforeyoucallforservice, checkthe troubleshootingguideinyourowner's manual. Aslightadjustmentofanycustom controlsmaysaveyouaservicecall. 2. Ifyourequireserviceduringthewarranty period, youmustcarefullypacktheproduct (preferablyintheoriginalpackage)andship itbyprepaidtransportationwithacopyofthe original receipt from the retailer to an authorizedservicecenter. 3. Pleasedescribeyourprobleminwritingand includeyourname, areturnUPSshipping address(P. O. Boxnotacceptable), anda daytimephonenumberwithyourshipment. [. . . ]
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