Dual Car Amplifier Da301L Users Manual Ultra Slim Series Amps_12513

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93388

INSTALLATION / OWNER'S MANUAL

Mobile Power Amplifiers

ULTRA SLIM SERIES

DA301L

DA704L

2

INSTALLATION

Preparation

Please read entire manual before installation. Due to the technical nature of

amplifiers, it is highly recommended that your Dual amplifier is installed by a

professional installer or an authorized dealer.

Before You Start

•Disconnectnegativebatteryterminal.(consultaqualifiedtechnicianfor

instructions)

•Avoidinstallingtheamplifierwhereitwouldbesubjecttohightemperatures,such

asfromdirectsunlight,orwhereitwouldbesubjecttodust,dirtorexcessive

vibration.

•Useextremecautionwhendrillingholestoavoiddamagingfuellinesorexisting

vehiclewiring.

•Allamplifierinstallationsrequirepower,signalandspeakerwires(notincluded).

•Anamplifierinstallationkit(soldseparately)ishighlyrecommendedtofacilitate

the installation. Consult your dealer for recommendations.

Mounting Location

•Chooseamountinglocationfortheamplifier.Suggestedlocationsincludeundera

seatorinthetrunk.

•Theamplifiercanbemountedhorizontal(recommended)orvertical.Foroptimum

performance,makesuretoprovideatleast1"ofspacearoundallsides.Donot

mounttheamplifierundercarpetsorwhereairflowisrestricted.

•Donotinstalltheamplifierwhereitmaybeexposedtomoisture.

•Theoptimummountinglocationvariesbetweenvehicles.Remembertotestall

amplifier functions before completing the final mounting procedure.

TYPICAL MOUNTING METHOD

NOTE:

Be sure to follow specific instructions included with your amplifier installation kit

(not included with this amplifier). The information below should be used as a general

guideline only.

Power Wire (+12V)

•Disconnectnegativebatteryterminalbeforeproceeding.Consultaqualified

technician for instructions if you are unsure.

•Planwireroutingbeforecuttinganywirestolength.Beginbyroutingthepower

+12Vwirefromthebatterytotheamplifierlocation.Useagrommetwhenrunning

wiresthroughthefirewallormetalopenings.Avoidrunningthepowerwirenear

existingvehiclewiringtopreventinducednoisefromenteringtheaudiosystem.

•Useextremecautionwhendrillingholestoavoiddamagingfuellinesorexisting

vehiclewiring.

•The+12VwireMUSTbefusedwithin18"ofthebatteryforprotectionofthevehicle’s

electrical system.

Ground Wire (GND)

•Theamplifiergroundwireshouldbeasshortaspossible(nomorethan36"or

1meter).Chooseacleanunpaintedsectionofmetalorthevehiclechassiswhen

attachingthegroundconnection.Besuretocleantheareaofanydirtorgrease.

Remote Turn-on Wire (REM)

•Theremoteturn-onwireconnectstotheheadunit'samplifierturn-onleador

powerantennaoutput.

Speaker Wires

•Chooseadequategaugespeakerwiredependingonyourexactamplifier/speaker

combination.Besuretoobservepolaritywhenconnecting.

•Donotgroundanyspeakerwiresorconnectanyspeakerwirestogether.

Input Signal

•Theamplifier'sinputsignalconnectstotheheadunit'slowlevel(RCA)orhighlevel

(speakerwire)outputs.

•Lowlevelinputsignalsdeliverthebestperformance.Ifunavailable,usethehigh

levelinputs-wheninterfacingwithfactoryheadunitforinstance.

CAUTION

•Donotusebothlowandhighlevelinputsatthesametime.Connectonlyoneorthe

other.

•Keeplowlevelinputsawayfromanypowerwirestoavoidenginenoise.

•Neverrunanywiresunderneathoroutsidethevehicle.

3

INSTALLATION

Connection Descriptions

DA301L

DA704L

Gain

Crossover Mode

High & Low Level Inputs

Crossover Frequency Control

1

2

3

Subsonic Filter

Bass Boost

Low Pass Filter

4

5

6

7

INSTALLATION

Audio Inputs and Controls

4

53 1 7

6

4

31

2 21

DA301L

DA704L

Speaker Connections

Fuse

+12VDC Battery Connection

1

2

3

Remote Turn On

Ground Connection

4

5

INSTALLATION

Power and Speaker Connections

5

12543

12543

REM (Remote Turn On)

SPEAKERS

RCA CABLES

GROUND

FUSE

12V BATTERY

MAXIMUM

12V DC

(Power)

2-8 ohms

Fuse Rating

Whenreplacingfuses,makesurenewfuse

isthecorrecttypeandamperage.Usingan

incorrect fuse could damage the amplifier.

DA301L 30Ax1

DA704L 30Ax1

Power/Ground Wire Size

Foroptimumperformance,useonlythewire

sizelistedbeloworlarger.Makesuretouse

thesamesizepowerandgroundwire.

DA301L 4 ga.

DA704L 4 ga.

Main Power Connections

Connect+12V,GNDandREMwiresaccordingly.AsuitablefuseMUSTbeinstalled

onthe+12Vleadwithin18"ofthebatteryforprotectionofthevehicle’selectrical

system.

6

INSTALLATION

Typical Wire Routing

No more than 36"

(1 meter)

High-Level Input

(speaker cables)

Low-Level Input

(RCA)

Speaker Connections

Connect speaker wires observing polarity.

The minimum impedance load for the

DA301L and DA704L is 2 ohms. Use of loads

lower than these is not recommended and

may cause amplifier damage.

Input Signal Connections

Low Level Input (RCA)

Low level (RCA) input signal is preferred for best performance. Typical trunk-

mount amplifier installations require a 17-20 foot RCA cable. Most trucks

and under-seat applications require a 6-9 foot RCA cable. Using t wisted pair

construction RCA cables will minimize noise.

High Level Input

(Speaker Wire)

High level inputs should only

be used when RCA outputs are

not available from the head unit.

Connect the head unit speaker

outputs to the high level input

connector as shown below. The

black wire (signal reference

ground) may or may not require a

connection to chassis ground

-depending on your particular

installation.

(Front)

(Rear)

4 Speakers (stereo)

Typical Stereo Wiring

(2 ohms minimum)

Note: Do not use both low and high level inputs

at the same time - connect only one or the other.

DA704L speaker connections shown

7

INSTALLATION

Amplifier Connections

Theinputlevelcontrol(gain)isusedtoobtainthe

bestpossiblematchbetweentheheadunitaudio

outputandtheamplifierinput.Beginbyturning

theinputlevelcontrolfullycounterclockwise.Next,

turnuptheheadunitvolumecontrolaround3/4of

thewayup.Adjusttheinputlevelcontrolclockwise

until audible distortion is heard, then slightly

counterclockwisetoprovidethebestmatch.

Repeatforallinputlevelcontrols.

Thecrossoverisusedtofilteroutfrequencies

aboveorbelowacertainpoint.ChooseLPFwhen

usingtheamplifierwithsubwoofers,HPFwhen

usingwithmidrange/tweetercombinationsand

FLATwhenusingwithcoaxial-typespeakers.

Note: Choose FLATwhenusingtheamplifierin

stereo/bridgedsimultaneousmode.Inthismode,

passivecrossoversarerequired.Failuretouse

thecorrectpassivecomponentsmaydamagethe

amplifierand/orspeakers.Consultaqualified

professional for recommendations.

Thiscontrolallowspreciseadjustmentofthe

crossoverfrequency.

Thiscontrolprovidesadditionalboost@45Hz

whenusedwithsubwoofers.Adjustthiscontrol

withcaution-asimproperusecandamage

speakers!

Settingthiscontroltothedesiredfrequencywill

limitharmfulfrequenciesbelowthesettingfrom

goingtothesubwoofer(s),preventingpossible

damagefromfrequenciesthatsubwoofersarenot

designed to handle.

ThegreenLEDindicatorilluminatesduringnormal

operation(POWER)andtheredLEDindicator

isvisiblewhentheamplifierdetectsafault

(PROTECT).

Input level Control

Crossover Mode

Crossover Frequency

Control

Bass Boost

Subsonic Filter

(DA704L )

LED Indicators

INSTALLATION

Configuration/Setup

8

Problem Cause Action

Unit will not turn on

(no power LED

indicator)

+12Vwirenotconnectedorincorrect

voltage.REMwirenotconnectedor

incorrectvoltage

Checkconnectionsforpropervoltage

(11~16VDC)

GNDwirenotconnected Checkconnectiontoground

Fuse(s)blown Replacefuse(s)

Unit has power -

LED is green (but

no sound)

Speakerwiresnotconnected Checkconnectionsatspeakers

Volumeturnedallthewaydown Increasevolumelevelatheadunit

Oneormorespeakerwirestouching

each other or touching chassis

ground

Insulateallbarespeakerwiresfrom

each other and chassis ground

Speaker(s)defectiveordamaged Check/replacespeaker(s)

Inputsignalnotconnected Checkhighorlowlevelinputsfor

proper connection

Unit blows fuse(s)

Incorrectfuserating Usefuse(s)withcorrectrating

+12Vwiretouchingchassisground Checkforpinchedwire

Speaker(s)defectiveordamaged Check/replacespeaker(s)

Engine noise

Badgroundconnection Makesureamplifierisgroundedto

clean bare metal

SignalgroundlooporRFI(radio

frequencyinterference)

Re-routeRCAcablesfromexisting

highcurrentwiring

LED illuminates red

(protect mode)

Oneormorespeakerwirestouching

each other or touching chassis

ground

Insulateallbarespeakerwiresfrom

each other and chassis ground

Speaker(s)defectiveor

damagedinternally(shorted) Check/replacespeaker(s)

Speakerloadlessthan2ohms

(stereo).Speakerloadlessthan4

ohms(bridged)

Adjustspeakerload-amplifierwill

not operate at less than 4 ohms

whenbridged

Distorted audio

output

Incorrectinputsignaltypeor

inputleveltoohigh

Checkconnectionsandreduce/

adjustinputlevel

Low audio output Incorrectinputsignaltypeor

inputleveltoolow

Checkconnectionsandincrease/

adjustinputlevel

Weak bass Speaker(s)arewiredoutofphase

Check(+)and(-)speaker

connections

(Observecorrectpolarity)

INSTALLATION

Troubleshooting

9

Power Output (14.4VDC, 20Hz ~ 250kHz):

•150 Watts RMS x 1 channel @ 4 Ohms

•350 Watts RMS x 1 channel @ 2 Ohm

Peak Music Power Output: 700 Watts

Signal to noise ratio: >80dB (THD < 0.5% @ 4Ω, 14.4V)

Frequency response: 20Hz -250Hz (0, -3dB)

Amplifier dimensions: 1.5” x 3” x 5.9” (13 x 76 x 150 mm)

Power Output (14.4VDC, 20Hz ~ 20kHz):

•100 Watts RMS x 4 channels @ 4 Ohms

•150 Watts RMS x 4 channels @ 2 Ohms

Peak Music Power Output: 400 Watts

Signal to noise ratio: >90dB (THD < 0.05% @ 4Ω, 14.4V)

Frequency response: 10Hz -35kHz (-3dB)

Amplifier dimensions: 1.5” x 3” x 5.9” (13 x 76 x 150 mm)

DA301L

INSTALLATION

Specifications

DA704L

INSTALLATION

One-Year Limited Warranty

Thiswarrantygivesyouspecificlegalrights.

Youmayalsohaveotherrightswhichvary

from state to state.

DualElectronicsCorp.warrantsthis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.

DualElectronicsCorp.agrees,atour

option,duringthewarrantyperiod,torepair

anydefectinmaterialorworkmanship

ortofurnishanequalnew,renewed

orcomparableproduct(whicheveris

deemednecessary)inexchangewithout

charges,subjecttoverificationofthedefect

or malfunction and proof of the date of

purchase.Subsequentreplacementproducts

arewarrantedforthebalanceoftheoriginal

warrantyperiod.

Who is covered?Thiswarrantyisextended

to the original retail purchaser for products

purchased from an authorized Dual dealer

andusedintheU.S.A.

What is covered?Thiswarrantycoversall

defectsinmaterialandworkmanshipin

thisproduct.Thefollowingarenotcovered:

software,installation/removalcosts,

damage resulting from accident, misuse,

abuse, neglect, product modification,

improperinstallation,incorrectlinevoltage,

unauthorizedrepairorfailuretofollow

instructionssuppliedwiththeproduct,or

damage occurring during return shipment

oftheproduct.Specificlicenseconditions

andcopyrightnoticesforthesoftwarecanbe

foundviawww.dualav.com.

What to do?

1.Beforeyoucallforservice,checkthe

troubleshootingguideinyourowner’s

manual.Aslightadjustmentofany

customcontrolsmaysaveyouaservice

call.

2.Ifyourequireserviceduringthe

warrantyperiod,youmustcarefully

packtheproduct(preferablyinthe

originalpackage)andshipitbyprepaid

transportationwithacopyoftheoriginal

receipt from the retailer to an

authorizedservicecenter.

3.Pleasedescribeyourprobleminwriting

and include your name, a return

UPSshippingaddress(P.O.Boxnot

acceptable), and a daytime phone number

withyourshipment.

4.Formoreinformationandforthelocation

ofthenearestauthorizedservicecenter

pleasecontactusbyoneofthefollowing

methods:

•Callustoll-freeat1-866-382-5476

•E-mailusatcs@dualav.com

ExclusionofCertainDamages:Thiswarranty

isexclusiveandinlieuofanyandallother

warranties,expressedorimplied,including

withoutlimitationtheimpliedwarrantiesof

merchantability and fitness for a particular

purpose and any obligation, liability,

right, claim or remedy in contract or tort,

whetherornotarisingfromthecompany’s

negligence,actualorimputed.Nopersonor

representativeisauthorizedtoassumefor

the company any other liability in connection

withthesaleofthisproduct.Innoevent

shall the company be liable for indirect,

incidentalorconsequentialdamages.

DualElectronicsCorp.

TollFree:1-866-382-5476

Monday-Friday,9AM-5PM,EST

www.dualav.com

©2014DualElectronicsCorp.

NSA1113-V01

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