JBL GX-A604 Manuel utilisateur

GX-A604/GX-A602/GX-A3001

power ampliﬁer

OWNER’S MANUAL

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INTRODUCTION

THANK YOU for purchasing a JBL®GX-series amplifier. So we can better serve you should you require warranty service, please retain your original

sales receipt and register your amplifier online at www.jbl.com.

INCLUDED ITEMS

GX-Series Amplifier (x 1) Speaker-level input harness

(GX-A602, GX-A3001 x 1)

(GX-A604 x 2)

LOCATION AND MOUNTING

Although these instructions explain how to install GX-series amplifiers in a general sense, they do not show specific installation methods that may be

required for your particular vehicle. If you do not have the necessary tools or experience, do not attempt the installation yourself. Instead, please ask

your authorized JBL car audio dealer about professional installation.

InstallatIon WarnIngs and tIps

IMPORTANT: Disconnect the vehicle’s negative (–) battery terminal before beginning the installation.

 •Alwayswearprotectiveeyewearwhenusingtools.

 •Checkclearancesonbothsidesofaplannedmountingsurface.Besurethatscrewsorwireswillnotpuncturebrakelines,fuellinesorwiring

harnesses, and that wire routing will not interfere with the safe operation of the vehicle.

 •Whenmakingelectricalconnections,makesuretheyaresecureandproperlyinsulated.

 •Ifyoumustreplaceanyoftheamplifier’sfuses,besuretousethesametypeoffuseandcurrentratingasthatoftheoriginal.

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English

INSTALLATION LOCATION

Amplifiers need air circulation to stay cool. Select a location that provides enough air for the amp to cool itself.

•Suitablelocationsareunderaseat(providedtheamplifierdoesn’tinterferewiththeseatadjustmentmechanism),inthetrunk,orinanyother

location that provides enough cooling air.

•Donotmounttheamplifierwiththeheatsinkfacingdownward,asthisinterfereswiththeamplifier’sconvectioncooling.

•Mounttheamplifiersothatitwillnotbedamagedbythefeetofbackseatpassengersorshiftingcargointhetrunk.

•Mounttheamplifiersothatitremainsdry–nevermountanamplifieroutsidethecarorintheenginecompartment.

MOUNTING THE AMPLIFIER

NOTE: You may find it more convenient to make all of the connections to the amplifier before you permanently mount it to the vehicle.

1. Select a suitable mounting location as described above.

2. Using the amplifier as a template, mark the locations of the mounting holes on the mounting surface.

3. Drill pilot holes in the mounting surface.

4.Attachtheamplifiertothemountingsurfacewithfourappropriatemountingscrewsofyourownchoice.Wesuggestusing#8Phillips-headsheet

metalscrews.Makesuretheamplifierismountedsecurely.

POWER AND GROUND CONNECTIONS

IMPORTANT: Disconnect the vehicle’s negative (–) battery terminal before beginning the installation.

The GX series amplifiers are capable of delivering high power levels, and require a heavy-duty and reliable connection to the vehicle’s electrical

systemtoachieveoptimalperformance.Pleaseadheretothefollowinginstructionscarefully.

usIng the connectors

GX-series amplifiers use the same type of screw terminals for power and speaker connections. This type of terminal is easy to use and allows the

easy connection of large-gauge wire.

Tousetheconnectors,useaPhillipsscrewdrivertoloosentheconnector’ssetscrew,insertthebarewireandtightenthesetscrewtosecurethe

wire in the connector, as shown in the illustration below.

IMPORTANT: Makesurethe(+)and(–)speakerbarewiresdonottoucheachotherortheotherterminalatboththeamplifierterminalsandspeaker

terminals. Touching wires can cause a short circuit that can damage the amplifier.

Tighten ScrewInsert Wire

Under Washer

Loosen Screw

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English

GROUND (GND) CONNECTION

Connectawire(minimum10AWG–5.3mm2)

from the amplifier’s GND terminal directly to a

solid point on the vehicle’s chassis.

•Foragoodconnection,usesandpapertoclear

the paint from the metal surface at this chassis

location. Use a star-type lock washer to secure

the wire’s connection.

POWER (12 V) CONNECTION

1.Connectawire(minimum10AWG–5.3mm2)

directlytothebattery’spositive(+)terminal.

2.Installafuseholderfora50Afuse(GX-A604,

GX-A3001)ora30Afuse(GX-A602)onthis

wirewithin18"(46cm)ofthebattery’s(+)

terminal. Do not install the fuse in the holder

at this time.

3. Route this wire to the amplifier’s location and

connectittotheamplifier’s+12Vterminal.

Be sure to use appropriate grommets

whenever routing wires through the firewall

or other sheet metal. IMPORTANT: Failure

to adequately protect the positive wire from

potential damage may result in a vehicle fire.

4.Whenyouarefinishedroutingandconnecting

this wire, install the appropriate fuse in the

holder you installed near the battery.

(GX-A604,GX-A3001–50Afuse;

GX-A602–30Afuse)

Power

Connectors

Audio System

Head Unit

Chassis Ground

(bare metal)

50 A Fuse (GX-A604/GX-A3001)

30 A Fuse (GX-A602) 18" (46 cm)

Remote Turn-On

(optional)

>#18 AWG (0.82 mm2) Wire

>#10 AWG (5.26 mm2) Wire

SPEAKER AND INPUT CONNECTIONS

Alwaysconnectthe(+)speakerterminalontheampliertothe(+)terminalonthespeakerandthe(–)speakerterminalontheampliertothe(–)terminal

on the speaker.

IMPORTANT:Makesurethe(+)and(–)barewiresdonottoucheachotherortheotherterminalatboththeamplifierterminalsandspeaker

terminals. Touching wires can cause a short circuit that can damage the amplifier.

gX-a604 speaker connectIons: 4-channel operatIon

Minimum speaker impedance: 2 ohms (each)

•ConnectthefrontspeakerstotheFLandFR(+)and(–)terminals.

•ConnecttherearspeakerstotheRLandRR(+)and(–)terminals.

Speaker Fuses 20A

Front Left Speaker

Rear Left Speaker

Front Right Speaker

Rear Right Speaker

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English

GX-A604 INPUT CONNECTIONS: 4-CHANNEL OPERATION

Connectyoursourceunitorprocessor’sfrontandrearleftandrightoutputstotheamplifier’sinputsasshownintheillustration.

Source Unit

Front Line Outputs

Rear Line Outputs

See Set The Crossover Controls, onpage20,forinformationaboutsettingtheamplifier’scontrolsfor4-channeloperation.

To use the speaker-level inputs instead of the line-level inputs, see Using The Speaker-Level Inputs, on page 12.

GX-A604 SPEAKER CONNECTIONS: 3-CHANNEL OPERATION

Minimum speaker impedance: 2 ohms each (left & right speakers); 4 ohms (subwoofer)

•ConnecttheleftandrightspeakerstotheFLandFR(+)and(–)terminals

•ConnectthesubwoofertotheRL(+)andRR(–)terminals.(Therear-channelBassBoostcontrolmakestherearchannelspreferableforsubwoofer

connection. See Set The Bass Boost, on page 23.) NOTE: You can connect two 2-ohm subwoofers in series to maintain the required 4-ohm

mimimum impedance for the subwoofer channel.

Speaker Fuses 20A

Front Left Speaker Front Right Speaker

Subwoofer

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English

GX-A604 INPUT CONNECTIONS: 3-CHANNEL OPERATION

Connectyoursourceunitorprocessor’slineoutputsasshownintheillustrationbelow.Settheinputmodeswitchinthe"4CH"position

NOTE: Usea"Y"-adaptertoconnectthesourceunit’ssubwooferoutputtotheamplifier’srearleftandrightinputjacks.

Source Unit

Front Line Outputs

"Y"-Adapter

Subwoofer Line Output

See Set The Crossover Controls, onpage20,forinformationaboutsettingtheamplifier’scontrolsfor3-channeloperation.

To use the speaker-level inputs instead of the line-level inputs, see Using The Speaker-Level Inputs, on page 12.

gX-a604 speaker connectIons: 2-channel operatIon

Minimum speaker impedance: 4 ohms (each)

Connecttheleftandrightspeakersasshownintheillustrationbelow.

Speaker Fuses 20A

Left Speaker Right Speaker

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