Kenwood KAC-848 Instruction Manual

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Connection@SpeakerSelection*Therated inputpowerofthespeakersthataregoingtobeconnectedshould begreaterthanthemaximumoutputpower{inWatts)oftheamplifier.Useofspeakershavinginputpowerratingsthatarelessthan theoutputpoweroftheamplifierwillcausesmoketobeemittedaswellasdamage.lt©Theimpedanceofthespeakersthataregoingtobeconnectedshould be2Qorgreater(forstereoconnections),or4Qorgreater(forbridged connections).Whenmorethanoneset ofspeakersaregoingtobeused,calculatethecombined impedanceofthespeakersand thenconnectsuitablespeakerstotheamplifier.Examples:Bridged Connections (4Q) __300 W or greater200 W or greaterStereoConnections(4Q)100 W or greater70 W or greater(epos200W =a2) oakMaxirnumoutputofCombinedxtheamplifierimpedanceRatedinputpowerandimpedanceofthespeakers@PowerwireconnectionTopreventfirecaused byashortinthewiring,connectafusiblelinkorbreakernearbythe battery'spositive terminal.;WiringeIfabuzzingnoiseisheardfromthespeakerswhentheengineisrunning,connectalinenoisefilter(optional)toeachofthe batterywire.*Donotallow the cordtodirectlycontact theedgeoftheironplatebyusingGrommets.eConnectthegroundwiretoametalpart ofthecarchassisthat acts as anelectricalgroundpassingelectricitytothe battery'snegative©terminal.Donotturnthepoweronifthegroundwireisnotconnected.¢Besuretoattachaprotective fuseintothe batterywire closetothebattery.Useaprotective fusehavingacapacitythatisabout 10Ahigher than themaximumcurrentdrawn bytheamplifier.eUsevehicle-type(fire-resistant)powersupplywiring wireforthe battery wireandthegroundwire.Thecurrent capacityofthepowersupplywiring wireshould be about10Ahigher thanthat oftheprotective fuse capacity(whichmeansabout 20Ahigher than themaximumcurrentdrawn bytheamplifier).eWhenmorethanonepoweramplifieraregoingtobe used, useapowersupplywiring wireandprotective fuseofgreater current-handling capacity than thetotalmaximumcurrentdrawn by eachamplifier.Example: One PowerAmplifierIsUsedViodeViaximumCurrentProtectiveruseross-sectionalAreaof Wiring|DrawnWire(AWG)KAC848]38A—=«_«dSOAXx1125Ax2)_ |5mm’ (AWG10) orgreaterx1KAC-74840Ax1[20Ax2]5mm?(AWG10) orgreater x8 English

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