AXTON A1300 User manual

INSTALLATION & OPERATION MANUAL
EINBAU & BEDIENUNGSANLEITUNG
1-/2-/4-CHANNEL POWER AMPLIFIERS
A1300 I A250 I A295 I A460 I A480

– 2 – – 3 –
1. CONNECTIONS + CONTROLS A250
1.1 CONTROLS
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input 1/2-CH for connection to head-unit.
2 INPUT GAIN CONTROL 1/2-CH
Input gain potentiometer for channel 1/2-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
3 HIGH INPUT 1/2-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalfromtheheadunit’sfrontoutput(ifheadunitdoesnotfeature
dedicated RCA line outs).
4 OPERATION MODE SWITCH 1/2-CH
Slide switch to select the operation mode of the X-over for section 1/2-CH of the
 amplier.
5 X-OVER FREQUENCY CONTROL 1/2-CH
 Controlpotentiometertoadjustthehighpassorlowpasslteringfrequencyforsection 
 1/2-CHoftheamplier.
1.2 INPUTS + OUTPUTS
6 POWER LED
 LEDtoshow“operating”statusoftheamplierbygreen/redillumination.Greenis 
 normalworkingstate,redisprotectstateofamplier.
7 “GND” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothechassisgroundornegativepoleofthecar 
 battery.
8 “REM” INPUT TERMINAL
 Terminaltoconnecttheampliertotheautomatic(remote)turn-on/turn-offleadofthe
head unit.
9 “+12 V” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothepositive+12Vpoleofthecarbattery.
10 ATC FUSE HOLDER
 Fuseholderfor1x20AATCfuse.Neverdeployfusesofhigheramperagerating.
1. CONNECTIONS + CONTROLS A250
ThankyouforpurchasingthisAXTONamplier!
Tomaximizetheperformanceofthisamplierandyourcompletecaraudiosysteminstall,we
recommendthatyouacquaintyourselfthoroughlywithalltechnicalfeaturesandcontrolling
options of thisAXTON amplier. Please read this manual carefully, before attempting the
installation.
If,afterreadingthismanual,youstillhavequestionsregardingfunctionsortheinstallationof
theamplier,werecommendthatyouconsultyourdealer.
11 SPEAKER OUTPUT TERMINAL
 Outputterminaltoconnectthespeakerstotheamplierineitherstereoorbridged 
mode.
2 3 4 5
1
8 9 bl bm6 7

– 4 – – 5 –
1. CONNECTIONS + CONTROLS A295
1.1 CONTROLS
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input 1/2-CH for connection to head-unit.
2 INPUT GAIN CONTROL 1/2-CH
Input gain potentiometer for channel 1/2-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
3 HIGH INPUT 1/2-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalfromtheheadunit’sfrontoutput(ifheadunitdoesnotfeature
dedicated RCA line outs).
4 OPERATION MODE SWITCH 1/2-CH
Slide switch to select the operation mode of the X-over for section 1/2-CH of the
 amplier.
5 X-OVER FREQUENCY CONTROL 1/2-CH
 Controlpotentiometertoadjustthehighpassorlowpasslteringfrequencyfor 
 section1/2-CHoftheamplier.
1.2 INPUTS + OUTPUTS
6 POWER LED
 LEDtoshow“operating”statusoftheamplierbygreen/redillumination.Greenis 
 normalworkingstate,redisprotectstateofamplier.
7 “GND” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothechassisgroundornegativepoleofthecar 
 battery.
8 “REM” INPUT TERMINAL
 Terminaltoconnecttheampliertotheautomatic(remote)turn-on/turn-offleadofthe
head unit.
9 “+12 V” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothepositive+12Vpoleofthecarbattery.
10 ATC FUSE HOLDER
 Fuseholderfor2x20AATCfuse.Neverdeployfusesofhigheramperagerating.
11 SPEAKER OUTPUT TERMINAL
 Outputterminaltoconnectthespeakerstotheamplierineitherstereoorbridged 
mode.
1. CONNECTIONS + CONTROLS A295
2 3 4 5
1
8 9 bl bm6 7

– 6 – – 7 –
1. CONNECTIONS + CONTROLS A460
1.1 CONTROLS
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input 1/2-CH for connection to head-unit.
2 INPUT GAIN CONTROL 1/2-CH
Input gain potentiometer for channel 1/2-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
3 HIGH INPUT 1/2-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalfromtheheadunit’sfrontoutput(ifheadunitdoesnotfeature
dedicated RCA line outs).
4 OPERATION MODE SWITCH 1/2-CH
 SlideswitchtoselecttheoperationmodeoftheX-overforsection1/2-CHoftheamplier.
5 X-OVER FREQUENCY CONTROL 1/2-CH
 Controlpotentiometertoadjustthehighpassorlowpasslteringfrequencyforsection 
 1/2-CHoftheamplier.
6 RCA INPUTS 3/4-CH
Low-level stereo RCA signal input 3/4-CH for connection to head-unit.
7 INPUT GAIN CONTROL 3/4-CH
Input gain potentiometer for channel 3/4-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
8 HIGH INPUT 3/4-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalfromtheheadunit’srearoutput(ifheadunitdoesnotfeature 
dedicated RCA line outs).
9 OPERATION MODE SWITCH 3/4-CH
 SlideswitchtoselecttheoperationmodeoftheX-overforsection3/4-CHoftheamplier.
10 X-OVER FREQUENCY CONTROL 3/4-CH
 Controlpotentiometertoadjustthehighpassorlowpasslteringfrequencyforsection 
 3/4-CHoftheamplier.
1.2 INPUTS + OUTPUTS
11 POWER LED
 LEDtoshow“operating”statusoftheamplierbygreen/redillumination.Greenis 
 normalworkingstate,redisprotectstateofamplier.
12 “GND” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothechassisgroundornegativepoleofthecarbattery.
13 “REM” INPUT TERMINAL
 Terminaltoconnecttheampliertotheautomatic(remote)turn-on/turn-offleadofthe
head unit.
1. CONNECTIONS + CONTROLS A460
14 “+12 V” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothepositive+12Vpoleofthecarbattery.
15 SPEAKER OUTPUT TERMINAL
 Outputterminaltoconnectthespeakerstotheamplierineitherstereoorbridged 
mode.
2 3 4 5
bo bp bqbm bn
6
7 8 9 bl
1

– 8 – – 9 –
1. CONNECTIONS + CONTROLS A480
1.1 CONTROLS
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input 1/2-CH for connection to head-unit.
2 INPUT GAIN CONTROL 1/2-CH
Input gain potentiometer for channel 1/2-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
3 HIGH INPUT 1/2-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalfromtheheadunit’sfrontoutput(ifheadunitdoesnotfeature
dedicated RCA line outs).
4 OPERATION MODE SWITCH 1/2-CH
 SlideswitchtoselecttheoperationmodeoftheX-overforsection1/2-CHoftheamplier.
5 X-OVER FREQUENCY CONTROL 1/2-CH
 Controlpotentiometertoadjustthehighpassorlowpasslteringfrequencyforsection 
 1/2-CHoftheamplier.
6 RCA INPUTS 3/4-CH
Low-level stereo RCA signal input 3/4-CH for connection to head-unit.
7 INPUT GAIN CONTROL 3/4-CH
Input gain potentiometer for channel 3/4-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
8 HIGH INPUT 3/4-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalfromtheheadunit’srearoutput(ifheadunitdoesnotfeature 
dedicated RCA line outs).
9 OPERATION MODE SWITCH 3/4-CH
 SlideswitchtoselecttheoperationmodeoftheX-overforsection3/4-CHoftheamplier.
10 X-OVER FREQUENCY CONTROL 3/4-CH
 Controlpotentiometertoadjustthehighpassorlowpasslteringfrequencyforsection 
 3/4-CHoftheamplier.
1.2 INPUTS + OUTPUTS
11 POWER LED
 LEDtoshow“operating”statusoftheamplierbygreen/redillumination.Greenis 
 normalworkingstate,redisprotectstateofamplier.
12 “GND” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothechassisgroundornegativepoleofthecarbattery.
13 “REM” INPUT TERMINAL
 Terminaltoconnecttheampliertotheautomatic(remote)turn-on/turn-offleadofthe
head unit.
1. CONNECTIONS + CONTROLS A480
14 “+12 V” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothepositive+12Vpoleofthecarbattery.
15 SPEAKER OUTPUT TERMINAL
 Outputterminaltoconnectthespeakerstotheamplierineitherstereoorbridged 
mode.
2 3 4 5
bo bp bqbm bn
6
7 8 9 bl
1

– 10 – – 11 –
1. CONNECTIONS + CONTROLS A1300
1.1 CONTROLS
1 RCA INPUTS 1/2-CH
Low-level stereo RCA signal input 1/2-CH for connection to head-unit.
2 INPUT GAIN CONTROL 1/2-CH
Input gain potentiometer for channel L/R-CH, to match the output voltage of the head-
 unittotheamplier’sinput.
3 SUBSONIC HIGHPASS FREQUENCY CONTROL 1/2-CH
 Controlpotentiometertoadjustthesubsonichighpasslteringfrequencypointfor 
 sectionL/R-CHoftheamplier.
4 BASS BOOST 0dB / 6dB 1/2-CH
 Switchtoselect6dBbassboost,ornoboostwitha40Hzcenterfrequencyofthe 
 ampliedoutputsignal.
5 LOWPASS X-OVER FREQUENCY CONTROL 1/2-CH
 ControlpotentiometertoadjustthelowpasslteringfrequencypointforsectionL/R-CH
 oftheamplier.
6 BASS LEVEL REMOTE CONTROL INPUT 1/2-CH
 Inputterminaltoconnecttheexternalbasslevelremotetotheamplier.
7 HIGH INPUT 1/2-CH
Molex connector terminal to insert the High level adapter (4-pin) that picks up the
 ampliedspeakersignalsfromtheheadunit’sfrontorrearoutputs(ifheadunitdoesnot
feature dedicated RCA line outs).
1.2 INPUTS + OUTPUTS
8 POWER LED
 LEDtoshow“operating”statusoftheamplierbygreen/redillumination.Greenis 
 normalworkingstate,redisprotectstateofamplier.
9 “GND” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothechassisgroundornegativepoleofthecar 
 battery.
10 “REM” INPUT TERMINAL
 Terminaltoconnecttheampliertotheautomatic(remote)turn-on/turn-offleadofthe
head unit.
11 “+12 V” POWER INPUT TERMINAL
 Terminaltoconnecttheampliertothepositive+12Vpoleofthecarbattery.
12 ATC FUSE HOLDER
 Fuseholderfor2x20AATCfuses.Neverdeployfusesofhigheramperagerating.
13 SPEAKER OUTPUT TERMINAL
 Outputterminaltoconnectthespeakerstotheamplierineitherstereoorbridged 
mode.
1. CONNECTIONS + CONTROLS A1300
2 3 4 5
bl bm bn8 9
6
7
1
bo

– 12 – – 13 –
2.0 SPEAKER IMPEDANCE & POWER WIRE INFO
Itisrecommendedthatyoufollowtheoptimumspeaker/subwooferimpedancesuggestions
below.
A250 ➞ 4/2ohmsstereo/4ohmsmonobridged
A295 ➞ 4/2ohmsstereo/4ohmsmonobridged
A460 ➞ 4/2ohmsstereo/4ohmsmonobridged
A480 ➞ 4/2ohmsstereo/4ohmsmonobridged
A1300 ➞4/2 ohms mono
3. AMPLIFIER MOUNTING
Attention!Foryourownsafety,disconnectthenegativebatteryterminal(GND)orremove
themainfuseinthepositivepowercablenearthecarbattery,beforeyoustartanywiring
work!
BeforeyouproceedtoinstallthisAXTONamplier,itisrecommendedtomapoutthe
completesystemandtherespectivewiringrequired.Consideralladditionalelectrical
requirementsandaccessories,suchaspowercables,interconnectcablesetc.,tocomplete
theinstall.Pleasenotethat-becauseofpossibleinterferenceproblemswiththeexistingcar
electricsandelectronics,especiallytheroutingofthesignalcablesandthechassisground
connectionwillhaveaprofoundimpactonthetrouble-free(noisefree!)operationofthe
amplier.
Themountinglocationshouldbecarefullyselectedandintheinterestofpassivedriverand
passengersafety,theampliermustbesecurelymounted.Makesurethatthereisnowiring
harness,fueltanketc.behindorbelowthemountingsurfacethatmaybedamagedbythe
drillingoftheholesfortheampliermountingscrews.Afterinstallation,thereshouldbea
clearanceofatleast5cmtoallsidesincludingthetopoftheamplierheatsink.Makesure
theunitisnotexposedtodirectsunlight,humidity,water,oilorspillofotheruidsthatmay
entertheamplier.
Oncethelocationwheretheamplierwillbemountedisdetermined,usetheunitasa
template for the marking of the mounting holes with pencil or felt-tip marker. The mounting
holesshouldbepilot-drilled,usinga2,5mmor3mmdrillbit.Bolttheampdown.
Important! There must not be a direct contact of the amplier heatsink, bottom panel
or any other metal part of the amplier to the vehicle metal panel! Electrical ground-
loops will cause audible hum!
4. WIRE ROUTING
4.1 MAIN POWER WIRES
Werecommendaminimummainpowercablecross-section(5mtotallength)of10to
16mm²,forboththepositiveandthegroundwires.Followingtheserecommendations
guaranteesatrouble-freeoperationofyouramplier,aswellasfullpoweroutput.
Runthepositivemainpowercable(„+12V“)directlyfromthepositiveterminalofthe
carbatterytotheamplier.Forprotectionofyourcaraudiosystemagainstelectricalre
hazards,resultingfromashort-circuitofthemainpowercabletochassisgroundamain
fuseholdermustbeinsertedwithintherst30cmofthepositivemainpowercable.The
applicablefusevaluemustbematchedtothelimitationsofyourmainpowercableandthe
currentdrawoftheamplier–thereforechooseanappropriatefusevalue.
Attachthegroundcabletotheamplier.Inmostcasesitwillbebesttokeeptheground
cable(„-12V“)asshortaspossible,i.e.tondachassiscontactveryclosetotheamplier.
Thegroundpowerwiremusthavethesamecross-sectionasthepositivepowercable.The
contactpointwherethegroundwireisattachedto,mustbesolidandclean,i.e.freefrom
rustorpaint!
Tightenbothpowerinputterminalsoftheamplier,anddoublecheckforperfecttofboth
maincableleads!
4.2 RCA & REMOTE WIRES
Forbestinterferencefreetransmissionofthemusicsignal,usedoubleortripleshielded
RCAinterconnectsonly.TwistedpairInterconnectsofferexcellentnoiserejectionaswell.
RoutetheRCAinterconnectsawayfrompotentialsourcesofInterference,suchasengine
computers, gas pumps, etc.
Carefullyruntheaudiosignalinterconnects,theremotewireand–ifapplicable-thecable
ofthelowpasslevelremotecontrol(A1300only)fromtheheadunitordashboardtothe
amplier.Asmentionedbefore,theaudiosignalcablesshouldalwaysberoutedcompletely
separatefromthepowercables.Connecttheremote(turnon/turnoff)leadtotherespective
inputterminaloftheamplierandtotheremoteoutputofyourhead-unit.Nowyoucan
connecttheRCAinterconnectstotherespectiveoutputsofyourhead-unitandtotheinputs
oftheamplier.Payattentiontoconnectthestereointerconnectscorrespondingly,leftis
1CH,rightisalways2CHa.s.o.
4.3 LOUDSPEAKER WIRES
Forlongerdistancestothespeakers,itisbesttouse1.5mm2or 2.5 mm2speakercablesto
avoidalossofpowerorriskdegradationofthesignalquality.
Oncethespeakercableshavebeenrouted,turnloosethescrewsofthespeakerterminal
bindingpostsand–afterinsertingthestrippedandbarespeakercableends–re-tightenthe
screws.Maintaincorrectpolarity(„+“to„+“;„-„to„-„).
Closetheelectricalcircuitbyattachingthegroundwiretothebatteryandswitchonyour
headunit.ThestatusbarbelowtheAXTONlogoshouldturnon.Ifthestatusbardoesnot
illuminate,yourinstallationiswrong!Immediatelyturnoffyourhead-unitandcarefullyre-
checkallinstallationandwiringsteps!

– 14 – – 15 –
5. CROSSOVER ADJUSTMENTS
Fortheampliertoperformbestwithyourspeakers,theelectroniccrossovercontrolsmust
besetandadjustedaccordingly.
5.1 SELECTING THE OPERATION MODE
Youmustselectandsettheappropriateoperationmodebeforeyoucanproceedto
adjustcrossoverfrequencypoints.Thisoperationmodedependsonthespeakersystem
connectedtotherespectiveamplierchannels.
➞SelectHIGHPASS,ifthespeakersystemisacomponent-,coaxial-ortriaxial-type.
➞SelectLOWPASSforasubwoofersystem.
➞SelectFLATIfyourspeakersystemwillhandleafullrangesignalwithoutelectricalor
mechanical overload.
5.2 HIGH PASS CROSSOVER FREQUENCY
Forsatellitespeakersystems,selectthe“HPF”mode,tocutoffthebasscontentinthe
music signal.
Highpasslteringwilltakeawayunnecessarymechanicalandelectrical‘strain’fromthe
connectedcoaxialorcomponentspeakersystems.Dependingonconesurface,voice-coil
diameterandthepowerhandlingofthespeakers,thefollowingrecommendationscanbe
issued:
FRONTDOORSATELLITESPEAKERSYSTEM(„HPF”MODE) HPCROSSOVER
FREQUENCY
13cm2-wayComponentSystem     80-110Hz
16cm2-or3-wayComponentSystem    50-80Hz
REARSATELLITESPEAKERSYSTEM(„HPF”MODE)  HPCROSSOVER
FREQUENCY
13cm2-wayCoaxialorComponentSystem    100-120Hz*
16cm2-wayCoaxialorComponentSystem    100-120Hz*
6x9”or7x10”TriaxialSpeakerSystem    100-120Hz*
*Whenasubwooferispartoftheaudiosysteminstall.
5.3 LOW PASS CROSSOVER FREQUENCY
Select“LPF”,toactivatethelowpasslteroftheintegratedelectroniccrossover.
TheLOWPASScut-offfrequencysettingdependsonthewoofersystemandeachvehicleis
different!Asaruleofthumb,settingsinbetween60to90Hzwillusuallygivesolidresults.
Thewooferlowpassfrequencypointismostlyamatteroftaste,andmustthereforebe
‘playedbyear’.
5.4 SUBSONIC CROSSOVER FREQUENCY (A1300)
Nowproceedtoadjustthesubsonichighpassfrequency.Thissubsoniccrossoverfrequency
pointdependsonthesizeandthepowerhandlingoftheinstalledsubwoofersystem.The
higherthesubsoniccrossoverfrequencyisset,thebetterorhighermechanicalpower
handlingwillresult.Thetrade-offisreducedlowendextension!Thesubsonichighpass
cannotbebypassed.Butyoucansetthepotentiometertoavalueof10Hztomake
subsoniclteringcompletelyinaudible.
5.5 BASS BOOST (A1300)
DependingonthesizeandoutputcapacityofthesubwoofersystemdrivenbytheA1300
amplier,itmaybesonicallybenecialtosetthebassboostslideswitchintothe6dB
position,whichwillemphasizethe40Hzfrequencyrangeoutputformore„basspunch“.
Theemphasisat40Hzcausesa„fatter“bassresponse,whichoftencreatesthatextrabitof
fun,dependingonthemusicpreferences.Byemphasizingthe40Hzrange,theA1300will
alsolimitabitearlier,e.g.thedistortion-freeoutputisslightlyreduced.
5.6 INPUT GAIN
Toreachamaximumindynamicresponsefromeachindividualhead-unit/amplier/speaker
combination,itisimportanttosettherespectiveinputsensitivitycontrols(„GAIN“)ofall
channelpairscorrectly.
Beforeyoustart,youMUSTsetalltonecontrols(Bass,Mid,Treble,Loudnessetc.)andthe
fader on the head unit to their neutral or center positions.
Nowturnallinputgaincontrolsoftheinstalledampliersanti-clockwisetotheirminimum
positionsandstartwiththechannelpair,thatdrivesthesubwoofersystem.
SUBWOOFER CHANNEL(S)
Setthevolumecontrolofyourhead-unittoapproximately¾offullvolume,whileplayinga
dynamicpieceofmusic.Slowlyincreasetheinputgaincontrolofthechannelpairdriving
thesubwoofer(s),byturningtheGAINcontrolclockwise.Increaseclockwiseuntilthebass
startstodistort.Reducethemainvolumelevelofyourhead-unittoamediumlisteninglevel.
Proceedwithfurtherchannels,ifapplicable.
SATELLITE CHANNELS
Slowlyincreasetheinputgaincontrolofthechannelpairdrivingthesatellitesystem,by
turningtheGAINcontrolclockwise.Increaseclockwiseuntilyoureachagoodtonalbalance
withaslightemphasisofthebassrange.Repeatforallfurtherchannels.
FINE TUNING OF ALL CROSSOVER FREQUENCY POINT SETTINGS
Finallyyoucanattempttone-tunetheHP,andLPcrossoverfrequenciesonyouramplier
setup,toreachthemaximumtonalbalanceandchannelintegrationofallloudspeakers
connectedtoyourcaraudiosystem.

– 16 – – 17 –
WirdankenIhnenfürdenKaufdieserAXTONEndstufe.
DamitSiedieWiedergabequalitätunddieLeistungsfähigkeitdiesesVerstärkersvollaus-
schöpfenkönnenbittenwirSie,sicheingehendmitdenMöglichkeitenundtechnischen
FeaturesdiesesVerstärkersvertrautzumachen.LesenSiedeshalbdienachfolgenden
AbschnittesorgfältigdurchundbewahrenSiedieseBedienungsanleitungauf.
Falls Sie im Anschluss weitergehende Fragen zu den Funktionen oder dem Anschluss
dieserEnstufehaben,kontaktierenSieIhrenHändler.

– 18 – – 19 –
1.0. ANSCHLÜSSE + BEDIENUNGSELEMENTE A250
1.1 BEDIENELEMENTE
1 CINCH INPUTS 1/2-CH
 CinchEingangsbuchsen1/2-CHfürdenAnschlussderCinchAusgängedes  
 Steuergerätes.
2 REGLER EINGANGSEMPFINDLICHKEIT 1/2-CH
 Eingangsempndlichkeitsregler„GAIN“derKanäle1/2-CH,fürdieAnpassungandie
 AusgangsspannungdesSteuergerätes.
3 HIGH INPUT 1/2-CH
 MolexSteckerterminalfürdenAnschlussdesAdapterszumAbgriffderLautsprecher- 
 ausgängedesHeadunits(wenndasSteuergerätnichtüberCinchLine-Outsverfügt).
4 SCHALTER FÜR BETRIEBART DER KANÄLE 1/2-CH
 SchiebeschalterfürdieFestlegungderArbeitsweisederintegriertenelektronischen 
 FrequenzweichederKanäle1/2-CH.
5 REGLER TRENNFREQUENZ 1/2-CH
 Regler„X-OVER“zumEinstellenderHochpassoderTiefpassTrennfrequenzander 
 integriertenelektronischenFrequenzweichederKanäle1/2-CH.
1.2 EINGÄNGE + AUSGÄNGE
6 POWER LED
 LEDwelchedurchgrünesLeuchtendennormalenBetriebszustandderEndstufeim 
 eingeschaltetenZustandsignalisiert.ImProtectModusleuchtetdieLEDrot.
7 “GND“ POWER INPUT TERMINAL
10 mm2EingangsterminalfürdenAnschlussandieChassis-MassedesKfz’s,oderden
 MinuspolderFahrzeugbatterie.
8 „REM“ INPUT TERMINAL
 EingangsterminalfürdenAnschlussdesRemote-KabelsüberdenAmp-oderAntenna- 
 RemoteAusgangdesSteuergerätes
9 + 12V“ POWER INPUT TERMINAL
10 mm2EingangsterminalfürdenAnschlussandenPluspolderFahrzeugbatterie.
10 ATC SICHERUNGSHALTER
 ZurinternenAbsicherungderEndstufe.Ausgelegtfüreine20AATCSicherung. 
 VerwendenSiekeinehöherenWertwieaufderEndstufeangegeben.
3 LAUTSPRECHER AUSGANGS-TERMINAL
Lautsprecheranschlussterminal für den Anschluss von Lautsprechern, stereo oder
 gebrückt.
1.0. ANSCHLÜSSE + BEDIENUNGSELEMENTE A250
2 3 4 5
1
8 9 bl bm6 7