Operation Manual

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
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
Toreachamaximumofdynamicresponsefromyourindividualhead
unit/amplifier/speakercombination,itisimportanttosetthere-
spectiveinputsensitivitycontrols(GAIN)correctly.Firstlythesensitivity
determinestheactualsignal-to-noiseratio.Secondly,thesensitivity
alsocontrolsthemaximumdistortion-freesoundpressurelevel(SPL)
possiblewithyourspecificcaraudiosystem.
Itisrecommendedtoeffectthesensitivityadjustmentsandsystem
LEVELmatchinginthesamesequenceaslistedbelow:
™ Setalltonecontrols(Bass,Mid,Treble,Sub)onthehead-unitas
wellasallfaderandbalancecontrolstoneutral.The"Loudness"
optionshouldbeinthe"Off"position,too.
™ Turnthecontrol(s)oftheconnectedamplifier(s)toits/their
lowestpositions.
™ Turn-onyourhead-unitandturn-upthevolumecontroltoapproxi-
mately3/4offullvolumeandstartplayingawellrecorded,dynamic
pieceofmusic.
™ 2-or4-channelfullrangeoperation,only:Slowlyturnupthe
controluntilyoucanheardistortedsounds.SlowlydecreasetheLEVEL
controltothepointwherethedistortionswillhavedisappeared.The
systemadjustmentiscompleted.
Logicalsequencetoadjusttheinputgainsofinstallswith3/4-or
5-channels:
™ SUB/3-or5-channeloperation(2x)stereo+monosub,only:
Slowlyturnupthecontroluntilyoucanheardistortedbass
sounds.SlowlydecreasetheGAINlevelcontroltothepointwhere
thedistortionswillhavedisappeared.
™ Nowyoureducethemainvolumelevelonthehead-unittomedium
listeninglevel.
™ FRONT/3-or5-channeloperation(2x)stereo+monosub,only:
Startturningupthecontrolclockwiseuntilyou
havereachedgoodtonalbalancebetweenthe(front)satellitesand
thesubwoofer.Aslightattenuationofthebassrangeshouldbepre-
ferred,asthiswillbecompensatedlaterbynormaldrivingnoises.For
3-channeloperationthesystemadjustmentiscompleted.
™ REAR/5-channeloperation2xstereo+monosub,only:Start
turningupthecontrolclockwiseuntilyoufeelto
youhavereachedanappropriate'rearfill'inthebackofthecar,so
thattheoverallin-carsoundbecomessmoothandhomogenous.
™ Finally,youmaywanttodosomefine-tuningonthedifferenthigh-
passandlowpassfrequenciesselected.Itisrecommendedtostart
fine-tuningwiththesubwooferlowpassfrequency.Thenproceed-if
necessary-withthefrontsatellitesandfinishtheadjustmentswith
therearsatelliteshighpassfrequencies.

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A1350-495 Manual D+E+F.indd 32 07.09.2007 12:23:51 Uhr