ALB12
INSTALLATION/OWNER'SꢀMANUAL
12"ꢀPortedꢀEnclosureꢀwithꢀBuilt-inꢀAmplifier
INSTALLATION
SafetyꢀFirst
CAUTION
!
Theꢀfollowingꢀinstructionsꢀareꢀdesignedꢀtoꢀensureꢀsafetyꢀduringꢀinstallationꢀandꢀ
useꢀofꢀtheꢀALB12.ꢀFailureꢀtoꢀheedꢀtheseꢀinstructionsꢀcanꢀresultꢀinꢀinjuryꢀorꢀdamageꢀ
toꢀtheꢀunitꢀorꢀvehicle.
The following installation instructions are intended to be used as a basic
guideline. If you feel unsure about installing this speaker system yourself, Dual
recommendsꢀacquiringꢀtheꢀservicesꢀofꢀaꢀprofessionalꢀcarꢀaudioꢀinstallationꢀ
center.
Beforeꢀinstallation,ꢀpleaseꢀreviewꢀtheꢀfollowingꢀguidelines:
1. Be sure to carefully read and understand the instructions before attempting to
install this product.
2.ꢀIfꢀadditionalꢀwiringꢀisꢀrequired,ꢀweꢀrecommendꢀrunningꢀallꢀwiresꢀpriorꢀtoꢀ
mounting your enclosure in place.
3. To ensure reliable performance and minimize signal or power loss, use the
highestꢀqualityꢀconnectorsꢀavailable.
4.ꢀNeverꢀrunꢀspeakerꢀwiresꢀunderneathꢀyourꢀvehicle.ꢀRunningꢀspeakerꢀwiresꢀ
insideꢀtheꢀvehicleꢀprovidesꢀtheꢀbestꢀprotectionꢀfromꢀexhaust,ꢀheatꢀandꢀ
environmentalꢀelements.ꢀ
5.ꢀAvoidꢀrunningꢀwiresꢀover,ꢀnearꢀorꢀthroughꢀsharp-edgedꢀsurfaces.ꢀWeꢀsuggestꢀ
you also use rubber grommets to protect any wires routed through metal,
especially the firewall.
6.ꢀWhenꢀrunningꢀtheꢀspeakerꢀcableꢀtoꢀtheꢀamplifier,ꢀavoidꢀrunningꢀitꢀnearꢀsourcesꢀ
ofꢀhighꢀcurrentꢀ(i.e.ꢀwiringꢀharnesses,ꢀbatteryꢀcables).
3
INSTALLATION
ConnectionꢀDescriptions
Note:ꢀBeꢀsureꢀtoꢀfollowꢀspecificꢀinstructionsꢀincludedꢀwithꢀyourꢀamplifierꢀ
installationꢀkitꢀ(notꢀincludedꢀwithꢀthisꢀamplifier).ꢀTheꢀinformationꢀbelowꢀshouldꢀbeꢀ
usedꢀaꢀgeneralꢀguidelineꢀonly.
PowerꢀWireꢀ(+12V)
•ꢀꢀDisconnectꢀnegativeꢀbatteryꢀterminalꢀbeforeꢀproceeding.ꢀConsultꢀaꢀqualifiedꢀ
technician for instructions if you are unsure.
•ꢀꢀPlanꢀwireꢀroutingꢀbeforeꢀcuttingꢀanyꢀwiresꢀtoꢀlength.ꢀBeginꢀbyꢀroutingꢀtheꢀpowerꢀ
+12Vꢀwireꢀfromꢀtheꢀbatteryꢀtoꢀtheꢀamplifierꢀlocation.ꢀUseꢀaꢀgrommetꢀwhenꢀ
runningꢀwiresꢀthroughꢀtheꢀfirewallꢀorꢀmetalꢀopenings.ꢀAvoidꢀrunningꢀtheꢀpowerꢀ
wireꢀnearꢀexistingꢀvehicleꢀwiringꢀtoꢀpreventꢀinducedꢀnoiseꢀfromꢀenteringꢀtheꢀ
audio system.
•ꢀꢀUseꢀextremeꢀcautionꢀwhenꢀdrillingꢀholesꢀtoꢀavoidꢀdamagingꢀfuelꢀlinesꢀorꢀ
existingꢀvehicleꢀwiring.ꢀꢀ
•ꢀꢀTheꢀ+12VꢀwireꢀMUSTꢀbeꢀfusedꢀwithinꢀ18"ꢀofꢀtheꢀbatteryꢀforꢀprotectionꢀofꢀtheꢀ
vehicle’sꢀelectricalꢀsystem.
GroundꢀWireꢀ(GND)
•ꢀꢀTheꢀamplifierꢀgroundꢀwireꢀshouldꢀbeꢀasꢀshortꢀasꢀpossible.ꢀChooseꢀaꢀcleanꢀ
unpaintedꢀsectionꢀofꢀmetalꢀorꢀtheꢀvehicleꢀchassisꢀwhenꢀattachingꢀtheꢀgroundꢀ
connection. Be sure to clean the area of any dirt or grease.
RemoteꢀTurn-onꢀWireꢀ(REM)
•ꢀꢀTheꢀremoteꢀturn-onꢀwireꢀconnectsꢀtoꢀtheꢀheadꢀunit'sꢀamplifierꢀturn-onꢀleadꢀorꢀ
otherꢀswitchedꢀ12ꢀvoltꢀsource.
InputꢀSignalꢀ
•ꢀꢀTheꢀamplifier'sꢀinputꢀsignalꢀconnectsꢀtoꢀtheꢀheadꢀunit'sꢀlowꢀlevelꢀ(RCA)ꢀoutputs.ꢀ
CAUTION
•ꢀꢀNeverꢀrunꢀanyꢀwiresꢀunderneathꢀorꢀoutsideꢀtheꢀvehicle.
4
INSTALLATION
ConnectionsꢀandꢀControls
1
2
3
4
5
6
7
8
9
10
LineꢀInꢀ(Left)
1
2
3
4
5
6
7
Power Indicator
GroundꢀConnection
RemoteꢀConnection
PowerꢀConnection
Fuseꢀ(15A)
LineꢀInꢀ(Right)
CrossoverꢀFrequencyꢀ
InputꢀLevelꢀControl
PhaseꢀControl
8
9
10
5
INSTALLATION
TypicalꢀWireꢀRouting
BATTERY
MainꢀPowerꢀConnections
ConnectꢀBAT+,ꢀGNDꢀandꢀREMꢀwiresꢀaccordingly.ꢀAꢀsuitableꢀfuseꢀMUSTꢀbeꢀinstalledꢀonꢀtheꢀ
BAT+ꢀleadꢀwithinꢀ18"ꢀofꢀtheꢀbatteryꢀforꢀprotectionꢀofꢀtheꢀvehicle’sꢀelectricalꢀsystem.
FuseꢀRating
Power/GroundꢀWireꢀSize
Whenꢀreplacingꢀtheꢀfuse,ꢀmakeꢀ
sure new fuse is the correct type
andꢀamperage.ꢀUsingꢀanꢀincorrectꢀ
fuse could damage the amplifier.
TheꢀALB12ꢀusesꢀ(1)ꢀ15ꢀamp ATO
style fuse.
Forꢀoptimumꢀperformance,ꢀuseꢀonlyꢀ
12ꢀgaugeꢀwireꢀorꢀlarger.ꢀMakeꢀsureꢀ
to use the same size power and
ground wire.
6
INSTALLATION
ControlꢀSetupꢀandꢀAdjustment
Lowꢀlevelꢀ(RCA)ꢀinputꢀsignalꢀisꢀpreferredꢀforꢀbestꢀ
performance. Typical trunk-mount installations
requireꢀaꢀ17-20ꢀfootꢀRCAꢀcable.ꢀMostꢀtrucksꢀandꢀ
behind-seatꢀapplicationsꢀrequireꢀaꢀ6-12ꢀfootꢀRCAꢀ
cable.ꢀUsingꢀtwistedꢀpairꢀconstructionꢀRCAꢀcablesꢀ
will minimize noise.
InputꢀSignalꢀConnections
LowꢀLevelꢀ(RCA)
Theꢀadjustableꢀcrossoverꢀisꢀusedꢀtoꢀfilterꢀoutꢀ
frequenciesꢀaboveꢀ40Hzꢀ~ꢀ160Hz.ꢀAdjustꢀitꢀtoꢀwhereꢀ
the ALB12 sound output blends with the rest of the
sound system.
CrossoverꢀFrequencyꢀ
Control
The phase control compensates for delay between
the ALB12 output and the rest of the sound system.
Begin with the phase control set to 0 degrees. If
theꢀsoundꢀisꢀadequateꢀfromꢀtheꢀnormalꢀlisteningꢀ
positionꢀinsideꢀtheꢀvehicle,ꢀnoꢀfurtherꢀadjustmentꢀisꢀ
necessary. If the sound is thin or lacking bass, adjust
the phase control until the bass is full and punchy.
PhaseꢀControl
Theꢀinputꢀlevelꢀcontrolꢀ(LEVEL)ꢀisꢀusedꢀtoꢀobtainꢀtheꢀ
best possible match between the head unit audio
output and the amplifier input. Begin by turning
theꢀinputꢀlevelꢀcontrolꢀfullyꢀcounterclockwise.ꢀNext,ꢀ
turnꢀupꢀtheꢀheadꢀunitꢀvolumeꢀcontrolꢀaroundꢀ3/4ꢀofꢀ
theꢀwayꢀup.ꢀAdjustꢀtheꢀinputꢀlevelꢀcontrolꢀclockwiseꢀ
until audible distortion is heard, then slightly
counterclockwiseꢀtoꢀprovideꢀtheꢀbestꢀmatch.
InputꢀLevelꢀControl
TheꢀLEDꢀindicatorꢀilluminatesꢀgreenꢀduringꢀnormalꢀ
operation.
LEDꢀIndicator
7
INSTALLATION
Troubleshooting
Problem
Cause
Action
Unitꢀwillꢀnotꢀturnꢀon
BAT+ꢀwireꢀnotꢀconnectedꢀorꢀincorrectꢀvoltageꢀ Checkꢀconnectionsꢀforꢀproperꢀvoltageꢀ
(noꢀpowerꢀLEDꢀindicator) REMꢀwireꢀnotꢀconnectedꢀorꢀincorrectꢀvoltage
(11~16VDC)
GND wire not connected
Checkꢀconnectionꢀtoꢀground
Fuse(s)ꢀblown
Replaceꢀfuse(s)
Unitꢀhasꢀpowerꢀ-ꢀLEDꢀisꢀ Volume turned all the way down
Increaseꢀvolumeꢀlevelꢀatꢀheadꢀunit
Check/replaceꢀspeaker
greenꢀ(butꢀnoꢀsound)
Speakerꢀdefectiveꢀorꢀdamaged
Input signal not connected
Checkꢀhighꢀorꢀlowꢀlevelꢀinputsꢀforꢀ
proper connection
Unitꢀblowsꢀfuse(s)
Engineꢀnoise
Incorrect fuse rating
Useꢀfuse(s)ꢀwithꢀcorrectꢀrating
Checkꢀforꢀpinchedꢀwire
BAT+ wire touching chassis ground
Speakerꢀdefectiveꢀorꢀdamaged
Bad ground connection
Check/replaceꢀspeaker
Makeꢀsureꢀamplifierꢀisꢀgroundedꢀtoꢀ
clean bare metal
SignalꢀgroundꢀloopꢀorꢀRFIꢀ(radioꢀfrequencyꢀ
Re-routeꢀRCAꢀcablesꢀfromꢀexistingꢀ
interference)
high current wiring
Distortedꢀaudioꢀoutput
Lowꢀaudioꢀoutput
Weakꢀbass
Incorrect input signal type or
inputꢀlevelꢀtooꢀhigh
Checkꢀconnectionsꢀandꢀreduce/adjustꢀ
inputꢀlevel
Incorrect input signal type or
inputꢀlevelꢀtooꢀlow
Checkꢀconnectionsꢀandꢀincreaseꢀorꢀ
adjustꢀinputꢀlevel
Lowꢀfrequencyꢀoutputꢀisꢀoutꢀofꢀphaseꢀ
Adjust phase control as needed
8
WARRANTY
LimitedꢀOne-YearꢀWarranty
Thisꢀwarrantyꢀgivesꢀyouꢀspecificꢀlegalꢀ
Whatꢀtoꢀdo?
rights.ꢀYouꢀmayꢀalsoꢀhaveꢀotherꢀrightsꢀ
whichꢀvaryꢀꢀfromꢀstateꢀtoꢀstate.ꢀ
1.ꢀBeforeꢀyouꢀcallꢀforꢀservice,ꢀcheckꢀtheꢀ
troubleshootingꢀguideꢀinꢀyourꢀowner’sꢀ
manual. A slight adjustment of any
customꢀcontrolsꢀmayꢀsaveꢀyouꢀaꢀserviceꢀ
call.
DualꢀElectronicsꢀCorp.ꢀwarrantsꢀthisꢀ
product to the original purchaser to be free
from defects in material and workmanship
for a period of one year from the date of
the original purchase.
2.ꢀIfꢀyouꢀrequireꢀserviceꢀduringꢀtheꢀ
warranty period, you must carefully
packꢀtheꢀproductꢀ(preferablyꢀinꢀtheꢀ
original package) and ship it by prepaid
transportation with a copy of the original
receipt from the retailer to an
DualꢀElectronicsꢀCorp.ꢀagrees,ꢀatꢀourꢀ
option, during the warranty period,
to repair any defect in material or
workmanshipꢀorꢀtoꢀfurnishꢀanꢀequalꢀ
new, renewed or comparable product
(whicheverꢀisꢀdeemedꢀnecessary)ꢀinꢀ
exchange without charges, subject to
verificationꢀofꢀtheꢀdefectꢀorꢀmalfunctionꢀandꢀ
proofꢀofꢀtheꢀdateꢀofꢀpurchase.ꢀSubsequentꢀ
replacement products are warranted for
the balance of the original warranty period.
authorizedꢀserviceꢀcenter.ꢀ
3. Please describe your problem in
writing and include your name, a
returnꢀUPSꢀshippingꢀaddressꢀ(P.O.ꢀBoxꢀ
not acceptable), and a daytime phone
number with your shipment.
4.ꢀForꢀmoreꢀinformationꢀandꢀforꢀtheꢀ
location of the nearest authorized
serviceꢀcenterꢀpleaseꢀcontactꢀusꢀbyꢀoneꢀ
ofꢀtheꢀfollowingꢀmethods:
Whoꢀisꢀcovered? This warranty is extended
to the original retail purchaser for products
purchased from an authorized Dual dealer
andꢀusedꢀinꢀtheꢀU.S.A.
•ꢀCallꢀusꢀtoll-freeꢀatꢀ1-866-382-5476
•ꢀE-mailꢀusꢀatꢀ[email protected]
Whatꢀisꢀcovered?ꢀThisꢀwarrantyꢀcoversꢀallꢀ
defects in material and workmanship in
thisꢀproduct.ꢀTheꢀfollowingꢀareꢀnotꢀcovered:ꢀ ExclusionꢀofꢀCertainꢀDamages:ꢀThisꢀ
software,ꢀinstallation/removalꢀcosts,ꢀ
damage resulting from accident, misuse,
abuse, neglect, product modification,
warrantyꢀisꢀexclusiveꢀandꢀinꢀlieuꢀofꢀanyꢀ
and all other warranties, expressed or
implied, including without limitation the
improperꢀinstallation,ꢀincorrectꢀlineꢀvoltage,ꢀ implied warranties of merchantability and
unauthorized repair or failure to follow
instructions supplied with the product, or
damage occurring during return shipment
ofꢀtheꢀproduct.ꢀSpecificꢀlicenseꢀconditionsꢀ
and copyright notices for the software can
fitness for a particular purpose and any
obligation, liability, right, claim or remedy
in contract or tort, whether or not arising
fromꢀtheꢀcompany’sꢀnegligence,ꢀactualꢀ
orꢀimputed.ꢀNoꢀpersonꢀorꢀrepresentativeꢀ
is authorized to assume for the company
any other liability in connection with the
saleꢀofꢀthisꢀproduct.ꢀInꢀnoꢀeventꢀshallꢀtheꢀ
company be liable for indirect, incidental or
consequentialꢀdamages.
9
INSTALLATION
Notes
Please keep your original sales receipt and be prepared to
provideꢀthisꢀreceiptꢀinꢀtheꢀeventꢀyouꢀrequireꢀservice,ꢀasꢀyourꢀ
original receipt is considered the best proof of purchase and
indicates the date you purchased your Dual product.
ForꢀYourꢀRecords
Dealer Name
Dealer Phone
Purchase Date
Registerꢀyourꢀproductꢀonlineꢀatꢀwww.dualav.com
RegisterꢀYourꢀProduct
10
INSTALLATION
Specifications
MaximumꢀOutputꢀPower 500 watts
ContinuousꢀOutputꢀPower 100 watts
FrequencyꢀResponse 20-200Hz
S/NꢀRatioꢀ@ꢀ1ꢀwatt 85dB
InputꢀImpedance Lowꢀlevelꢀ(RCA):ꢀ10kꢀohms
InputꢀSensitivityꢀ(RCA)ꢀ 50mV – 3V
CrossoverꢀFrequency 40–160Hz
CrossoverꢀSlope 6dB/octave
Phase 0–180ꢀdegrees
Fuse 15 amp ATO
Dimensions 18.9ꢀxꢀ14.17ꢀxꢀ11"ꢀ(WxHxD)
Design and specifications subject to change without
notice.
11
DualꢀElectronicsꢀCorp.
TollꢀFree:ꢀ1-866-382-5476
©2013ꢀDualꢀElectronicsꢀCorp.ꢀAllꢀrightsꢀreserved.
NSA0413-V01
PrintedꢀinꢀChina
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