AXTON A100 - Page 6

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2.0 SPEAKER IMPEDANCE & POWER WIRE INFO
Itisrecommendedthatyoufollowtheoptimumspeaker/subwooferimpedancesuggestions
below.
A500 ➞ 4/2ohmsstereo/4ohmsmonobridged/sub4/2ohmsmono
A400 ➞ 4/2ohmsstereo/4ohmsmonobridged
A200 ➞ 4/2ohmsstereo/4ohmsmonobridged
A100 ➞ 4/2ohmsmono
3. AMPLIFIER MOUNTING
Attention!Foryourownsafety,disconnectthenegativebatteryterminal(GND)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16to
20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(GND)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basslevelremotecontrol(A100andA500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byusingtheprovidedRCAinputadapter.Payattentiontoconnect
the stereo interconnects correspondingly, left is 1CH, right is always 2CH a.s.o.
4.3 HIGH-LEVEL INPUT
Forlongerdistancesfromtheheadunittotheinputsection,itisbesttouse1.0mm
2
or
1.5 mm
2
speakercablestoavoidalossofpowerorriskdegradationofthesignalquality.
Once the speaker cables have been routed, connect them to the speaker cable input
adapter.Maintaincorrectpolarity(“+”to“+”and“-“to“-“).Whenusingthehigh-levelinput,
you can chose the Auto-Turn-On function “VOX” or “DC” instead of running a separate
remotewiretoturnontheamplier.“VOX”turnsontheamplierwhenitrecognizesan
audiosignal.“DC”isusingtheDCvoltageoftheheadunit’sinternalspeakeramplier.
TheAxtonampwillthenturnon/offaccordingtotheheadunit’sstateautomatically.We
recommend using the “DC” mode.
Forbestinstallationcomfortyoucanpurchasetheoptionalplug&playconnectorN-A400-
ISOandthecar-specicAxtonadapterN-A480DSP-ISOxx.Thatwayyouareabletoinstall
theamplierveryquicklyandwithoutanydamagetotheoriginalheadunitandspeaker
wires. Ask your Axton dealer for further information.
4.4 LOUDSPEAKER WIRES
Forlongerdistancestothespeakers,itisbesttouse1.5mm
2
or 2.5 mm
2
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“+”and“-“to“-“).
Close the electrical circuit by attaching the ground wire to the battery and switch on your
headunit.IfthestatusLEDdoesnotilluminate,yourinstallationiswrong!Immediatelyturn
offyourhead-unitandcarefullyrecheckallinstallationandwiringsteps!