ARC Audio XXD Car Amplifier User Manual


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)NPUT3ECTION
"ECAUSEOFTHEWIDERANGEOFHEADUNITOUTPUTCONFIGURATIONSALL!2#!UDIOAMPLIFIERS
HAVEANADJUSTABLEINPUTSENSITIVITYORh'AINv4HEGAINISNOTAVOLUMEORAPOWER
LIMITINGCONTROLLIKEATHROTTLE)TMAKESTHEAMPMORESENSITIVETOINPUTFROMTHESTEREO
7ITHTHEGAINUPTHEAMPWILLREACHFULLOUTPUTATALOWERVOLUMESETTINGONTHEDECK!T
HIGHERGAINSETTINGSTHEAMPALSOBECOMESMORESENSITIVETONOISEFROMTHECARS
ELECTRICALSYSTEM4RYTORUNTHEGAINATTHELOWESTSETTINGPOSSIBLEFORYOUSYSTEM
4HEREISNOCORRECTGAINSETTING"ECAUSE
SPEAKERSREQUIREDIFFERENTPOWERDEMANDS
TOREACHTHESAMEOUTPUTTHEGAINSMOST
OFTENNEEDTOBEUSEDTOCOMPENSATEFOR
THESEDIFFERENCES)FYOUTRIEDTOSETALLTHE
GAINSATHALFWAYYOUWOULDPROBABLYFIND
THESYSTEMDIDNTSOUNDVERYGOOD5SING
GOODJUDGMENTANDLISTENINGCAREFULLYTO
EACHSPEAKERISSTILLTHEBESTWAYTOTUNEA
SYSTEM
#ROSSOVER#ONTROLS
!CROSSOVERISADEVICETHATREMOVESUNWANTEDFREQUENCIESFROMASPEAKEROR
AMPLIFIER!TWEETERCANEASILYBEDESTROYEDBYBASSNOTESIFTHEYARENOTFILTEREDOUT
,IKEWISEASUBWOOFERWILLNOTSOUNDNATURALIFITISPLAYINGMIDRANGENOTES!
CROSSOVERREMOVESTHESESOUNDSFROMTHESPEAKER!SYOUMIGHTGUESSCAREFUL
ADJUSTMENTISNEEDTOENSURETHATALLTHE
SPEAKERSAREPLAYINGTHERIGHTSOUNDS
ANDTHATYOUARELEFTWITHNOhHOLESvOR
LOWSPOTSINTHEFREQUENCYRESPONSE
"ASS"OOSTCONT
4HE HASAFULLYADJUSTABLEBASSBOOSTWITHADJUSTMENTSFORBOTH"OOST,EVEL
AND"OOST&REQUENCY"EGINYOURADJUSTMENTSATLOWVOLUME4URNTHE"ASS"OOST,EVEL
CONTROLABOUTWAYUP.EXTTURNTHE"ASS"OOST&REQUENCYUPANDDOWN4HISWILL
TAKESOMETWEAKINGBUTTRYTOFINDTHESETTING
THATGIVESYOUARICHERANDFULLERSOUNDWITHOUT
OVERWORKINGTHESUBWOOFER0LAYSEVERAL
DIFFERENTKINDSOFMUSICTOTESTYOURADJUST
MENT9OUMAYFINDYOUHAVETOGOBACKAND
MAKESOMECHANGESANDCOMPROMISESTOGETIT
SOUNDINGRIGHTWITHANASSORTMENTOFMUSIC
5SE"ASS"OOSTCAREFULLY4HEDEMANDSON
POWEROUTPUTARETREMENDOUS4RYTOMINIMIZE
THEUSEBYCHANGINGWOOFERPOSITIONORTHE
ENCLOSURESIZE
3PEAKEROUTPUTS
4HISAMPLIFIERISAMULTICHANNELAMPLIFIERDESIGN-EANINGITHASMORETHANONE
CHANNELOFSPEAKEROUTPUTS)TISEQUIPPEDWITHALARGEBLOCKSTYLETERMINALFORSPEAKER
CONNECTION-AKETHISCONNECTIONCAREFULLYANDNEATLY3TRIPYOURWIREBACKANDTWIST
THEEXPOSEDLEADSANDINSERTTHEMINTOTHEBLOCKTERMINALWHILEBEINGCAREFULTHAT
THEREISNOLOOSEORFRAYEDSTRANDSOFWIREAND
TIGHTENTHE!LLENHEADSCREWDOWNONTHE
TERMINALTILLTHEWIREISTIGHTLYSECUREDIN
PLACE)FTHEWIRESEVERCOMEINCONTACTWITH
EACHOTHERTHEAMPLIFIERWILLGOINTOPROTEC
TION
+NOWYOURTOTALOHMLOADBEFOREYOU
MAKEANYCONNECTIONS
3UBWOOFER)NPUT3WITCHONLY
4HE88$ISACHANNELAMPLIFIERTHATINCORPORATESANADVANCEDCROSSOVERNETWORK
ANDA3UBWOOFER2EMOTE,EVELCONTROL9OUAREABLETOSELECTWHICHOFTHEINPUTSTHE
SUBWOOFERSIGNALISSOURCEDTO7ITHTHE
3UBWOOFER3OURCEBUTTONINTHEOUT
POSITIONTHESUBWOOFERWILLRECEIVESIGNAL
FROMTHEFRONTCHANNELINPUTS7ITHTHE
BUTTONINTHESUBSIGNALWILLCOMEFROM
THEREARINPUTS
"ASS"OOST
AMPLIFIERSHAVEANADJUSTABLEBASSBOOST/NTHECHANNEL 
AND THISISCONTROLLEDBYASWITCHSELECTINGTHEMOSTCOMMONLYUSED"!33
"//34SETTING"EGINYOURADJUSTMENTSATLOWVOLUME)FYOUDONOTHEARANYIMPROVE
MENTTHENTHEWOOFERDOESNOTNEEDANY
"!33"//34
5SE"ASS"OOSTCAREFULLY4HEDEMANDSON
POWEROUTPUTARETREMENDOUS4RYTO
MINIMIZETHEUSEBYCHANGINGWOOFER
POSITIONORTHEENCLOSURESIZE
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