JL Audio C2-400x User manual

OWNER’S MANUAL
Thank you for choosing a JL Audio Evolution™ C2 Coaxial Speaker System
for your automotive sound system.
These Evolution™ Speakers have been designed and manufactured to
exacting standards in order to ensure years of musical enjoyment in your
vehicle. For maximum performance, we highly recommend that you have
your new speakers installed by an authorized JL Audio dealer. Your
authorized dealer has the training, expertise and installation equipment
to ensure optimum performance from this product. Should you
decide to install the speakers yourself, please take the time
to read this manual thoroughly so as to familiarize yourself
with its installation requirements and setup procedures.
If you have any questions regarding the instructions in this
manual or any aspect of your amplifier’s operation, please contact your
authorized JL Audio dealer for assistance. If you need further assistance,
please call the JL Audio Technical Support Department
at [phone] during business hours.
4.00-inch (100 mm) Coaxial Loudspeakers

2 | JL Audio - C2-400x Owner’s Manual
A
F
B
G
E
C
D
Due to ongoing product development, all specifications are subject to change without notice.
Woofer Physical Dimensions
Frame Outer Diameter (A) 4.02 in. / 102.0 mm
Grille Tray Outer Diameter (B) 5.20 in. / 132.2 mm
Magnet Outer Diameter (C) 2.36 in. / 60.0 mm w/o cover
Frontal Tweeter Protrusion (D) 0.56 in. / 14.3 mm
Frontal Grille Protrusion (E) 0.66 in / 16.7 mm
Mounting Hole Diameter (F) 3.81 in. / 96.8 mm
Mounting Depth (G) 1.81 in. / 46.0 mm w/o cover

2 | JL Audio - C2-400x Owner’s Manual
3
C2-400x SPECIFICATIONS:
Woofer: Injection-molded, Mica-filled, Polypropylene Cone,
Butyl Rubber Surround, 1 in. Voice Coil on Kapton® Former,
Flat, Symmetrical Roll Spider, Ferrite Magnet
Tweeter: 0.75 in. (19 mm) Silk Dome, Ferrofluid Cooling /
Damping, Neodymium Magnet
Crossover: Natural Roll-Off Low-Pass, 1st Order High-Pass
Filter with Electrolytic Capacitor
Continuous Power Handling: 35 Watts
Recommended Amp Power: 10-50 Watts per channel (RMS)
Efficiency: 84.5 dB @ 1W/1m | 90.5 dB @ 1W/0.5m
Sensitivity: 87.5 dB @ 2.83V/1m
Nominal Impedance: 4 ohm
Frequency Response: 71 Hz - 22 KHz ± 3 dB
Included Components and Parts:
• Two C2-400x 4.0-inch (100mm) Coaxial loudspeakers
• Two Grille Assemblies
• Eight #8 x 1-inch (25mm) sheet metal screws
• Eight Mounting Clips
• Two 4x6-inch (100 x 150 mm) Adaptor Plates
• Two 5.2 mm female crimpable connectors
• Two 2.8 mm female crimpable connectors
• Four #8 x 0.315-inch (8 mm) sheet metal screws
• Two self-adhesive JL Audio logo name badges
GETTING STARTED
•Turnofftheaudiosystem.Itisalso
advisabletodisconnectthenegative(–)
terminalofyourvehicle’sbatterywhenever
performinginstallationwork.
•Beforecutting,drillingorinsertinganyscrew,
checkclearancesonbothsidesoftheplanned
mountingsurface.Alsocheckforanypotential
obstacles,suchaswindowtracksandmotors,
wiringharnesses,etc.Checkbothsidesofthe
vehicle,manyvehiclesarenotsymmetrical!
•Alwayswearprotectiveeyewear.
SPEAKER PLACEMENT CONSIDERATIONS
Inmostcases,yourspeakerswillbeplacedinto
factoryspeakerlocations.Ifyouhavesomespeaker
mountingflexibility,keepthefollowinginmind:
Lowermountinglocations,suchasthelowerfront
cornerofadoororakick-panelprovidethegreatest
pathlengthdistancesforthesoundemittedbythe
speakers.Forthisreason,theyaregenerallymore
desirablethanhighermountinglocations.Higher
mountinglocationswillusuallyresultinextreme
near-sidesoundstagebiaswhichcompromisesthe
stereolisteningexperience.

4 | JL Audio - C2-400x Owner’s Manual
Itisabsolutelyvitalthatthespeakerframe
fitsintothemountingholecleanly.Thismustbe
checkedpriortotighteningthescrews.Donot
forcetheframeintoaholethatistoosmall.Do
nottightenthespeakerontoanunevensurface.
Thiswilldamageyourspeakers.Thespeaker
shouldalsofitsothatairdoesnotleakaround
themountingflange.Airleakswillcauseasevere
degradationinsoundquality.Sealanyairleaks
withanautomotive-gradesealantmaterial.
InstallasshowninDiagramA(page5).Usethe
suppliedmountingclipsunlessthefactoryholes
alreadyfeaturethreadedinserts.Hand-tightenthe
screwsevenlytoavoidbendingthespeakerframe!
Custom Location:Runspeakerwiretothe
desiredmountinglocation.Ifyouarerunning
wiresintoadoor,useexistingfactorywiringboots
wheneverpossible.Ifyouaredrillingnewholes,file
theiredgesandinstallrubbergrommetsintoeach
hole.Then,coverthewireswithaprotectivePVC
sleeveandrunthemthroughthedoorjamb.Make
surethatthewireswillcleardoorhingesandother
structuresinthedoor.Ifyouareunsureaboutany
partofthisprocess,pleasecontactyourJLAUDIO
dealerforinstallationhelp.
WARNING
!!

Double check the clearance for both speakers
before proceeding. Many cars are different from
one side to the other!
Selectanevensurface.Tighteningaspeakeronto
anunevensurfacecandamageit.Usethesupplied
templatetomarkthedesiredmountinglocation.Mark
thecenterandtheoutlineofthemountingholeas
wellasthemountingscrewpositions.Beforedrilling
orcuttingonyourinteriorpanels,useautilityknife
tocutanyfabric,vinylorleatherfromholelocations.
Thesematerialscaneasilybesnaggedbyadrillor
asaw,causingdamagetothepanelandpossible
bodilyinjury.Drillfour1/8-inch(3mm)holesforthe
speaker’smountingscrewsatthepositionsyouhave
marked.Alsodrillapilotholeinthecenterofthe
speakermountingholeatthistime.
SPEAKER INSTALLATION
Thespeakershouldbeinstalledinoneofthe
followingwaysdependingonlocation:
Factory Location:Ifyouwillbeusingthefactory
speakerwires,itmaybenecessarytochangethe
terminations.Thismaybeaccomplishedbyusingan
adaptorplugorsimplybycuttingthefactoryconnector
offandusingthesuppliedcrimpconnectorsto
terminatethespeakerwires.Thelargeconnectorisfor
thepositiveterminalandthesmallconnectorisforthe
negativeterminalofeachC2-400x.
Youmayalsochoosetorunnewspeakerwires...
Runspeakerwiretothedesiredmounting
locations.Ifyouarerunningwiresintoadoor,use
existingfactorywiringbootswheneverpossible.If
youaredrillingnewholes,filetheiredgesandinstall
rubbergrommetsintoeachhole.Wiresshouldthen
becoveredwithaprotective,flexiblePVCsleeveand
thenrunthroughthedoorjamb.Makesurethatthe
wireswillcleardoorhingesandotherstructuresin
thedoor.Ifyouareunsureaboutanypartofthis
process,pleasecontactyourJLAudiodealerfor
installationhelp.
WARNING
!!

Double check the clearance for both speakers
before proceeding. Many cars are different from
one side to the other!
Yournewspeakershavebeendesignedtoinstall,
withoutmodifications,intomostvehiclesthataccept
a4.0-inch(100mm)speakeror4x6-inchoval
speaker(adaptorplatesaresuppliedforthelatter).
Mostfactory4.0-inchspeakersusefourmounting
screwswhichwilllineupwiththemountingholes
onyourC2-400xspeakers.Insomevehicles,only
twomountingholesareusedandthereisinsufficient
clearanceforthetwoextramountingtabs.Ifthis
isthecase,bendtheredundanttabsbackandforth
untiltheybreakoff(allfourtabsontheC2-400xare
perforatedforthispurpose).Afterbreakingoffthe
unwantedtabs,pleasehandlethespeakercarefully,
asthebrokenedgesmaybesharp.

4 | JL Audio - C2-400x Owner’s Manual
5
Then,usingasabersaw,makethecircularcutoutfor
thespeaker.Fileanyroughedges.Insertthemounting
clipswiththeflatsidetowardsthespeakerasshownin
DiagramB(below).
Itisabsolutelyvitalthatthespeakerframefitsinto
themountingholecleanly.Thismustbecheckedprior
totighteningthescrews.Donotforcetheframeintoa
holethatistoosmall.Donottightenthespeakeronto
anunevensurface.Thiswilldamageyourspeakers.
Thespeakershouldalsofitsothatairdoesnotleak
aroundthemountingflange.Airleakswillcausea
severedegradationinsoundquality.Sealanyairleaks
withanautomotive-gradesealantmaterial.
Diagram A:
Factory Location Woofer Installation
WARNING
!!
Hand-tighten the screws evenly in a criss-cross
pattern to avoid bending the speaker frame or
stripping the mounting clips.
Connectthespeakerwires,observingcorrect
polarity,andinstallthespeakerandgrilleassembly
asshowninDiagramB(below).Hand-tightenthe
screwsevenlytoavoidbendingthespeakerframe!
TheincludedJLAudiologonamebadgesshould
beaffixedtothecircularindentedareainthelower
partofeachgrilleassembly.Ifthegrilleassemblyis
notused,theJLAudiologobadgescanbeaffixed
elsewhereascreativeadditionstoyourinstallation.
Diagram B:
Custom Location Woofer Installation

6 | JL Audio - C2-400x Owner’s Manual
NOTES

6 | JL Audio - C2-400x Owner’s Manual
7
NOTES

LIMITED WARRANTY  AUTOMOTIVE SPEAKER SYSTEMS USA
JLAUDIOwarrantsthesespeakers(andcrossovernetworks,whereapplicable)tobefreeofdefectsin
materialsandworkmanshipforaperiodofone (1) year.
Thiswarrantyisnottransferableandappliesonlytotheoriginalpurchaserfromanauthorized
JLAUDIOdealer.Shouldservicebenecessaryunderthiswarrantyforanyreasonduetomanufacturing
defectormalfunction,JLAUDIOwill(atitsdiscretion),repairorreplacethedefectiveproductwithnewor
remanufacturedproductatnocharge.Damagecausedbythefollowingisnotcoveredunderwarranty:accident,
misuse,abuse,productmodificationorneglect,failuretofollowinstallationinstructions,unauthorizedrepair
attempts,misrepresentationsbytheseller.Thiswarrantydoesnotcoverincidentalorconsequentialdamages
anddoesnotcoverthecostofremovingorreinstallingtheunit(s).Cosmeticdamageduetoaccidentornormal
wearandtearisnotcoveredunderwarranty.
Anyapplicableimpliedwarrantiesarelimitedindurationtotheperiodoftheexpresswarrantyasprovided
hereinbeginningwiththedateoftheoriginalpurchaseatretail,andnowarranties,whetherexpressorimplied,
shallapplytothisproductthereafter.Somestatesdonotallowlimitationsonimpliedwarranties,therefore
theseexclusionsmaynotapplytoyou.Thiswarrantygivesyouspecificlegalrights,andyoumayalsohaveother
rightswhichvaryfromstatetostate.

If you need service on your JL AUDIO product:
AllwarrantyreturnsshouldbesenttoJLAUDIOfreightprepaidthroughanauthorizedJLAUDIO
dealerandmustbeaccompaniedbyproofofpurchase(acopyoftheoriginalsalesreceipt.)Direct
returnsfromconsumersornon-authorizeddealerswillberefusedunlessspecificallyauthorizedby
JLAUDIOwithavalidreturnauthorizationnumber.Warrantyexpirationonproductsreturned
withoutproofofpurchasewillbedeterminedfromthemanufacturingdatecode.Coveragemaybe
invalidatedasthisdateisprevioustopurchasedate.Returnonlydefectivecomponents.Ifonespeaker
failsinasystem,returnonlythatspeakercomponent,nottheentiresystem.Non-defectiveitems
receivedwillbereturnedfreight-collect.Customerisresponsibleforshippingchargesandinsurance
insendingtheproducttoJLAUDIO.Freightdamageonreturnsisnotcoveredunderwarranty.
For Service Information in the U.S.A. please call
JL Audio Customer Service: [phone]
9:00 AM – 5:30 PM (Eastern Time Zone)
JL Audio, Inc
10369 North Commerce Pkwy.
Miramar, FL 33025
International Warranties:
Products purchased outside the United States of America are covered only
by that country’s distributor and not by JL Audio, Inc.
C2-400x-06112008