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

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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 

•Turnofftheaudiosystem.Itisalso

advisabletodisconnectthenegative(–)
terminalofyourvehicle’sbatterywhenever
performinginstallationwork.

•Beforecutting,drillingorinsertinganyscrew,

checkclearancesonbothsidesoftheplanned
mountingsurface.Alsocheckforanypotential
obstacles,suchaswindowtracksandmotors,
wiringharnesses,etc.Checkbothsidesofthe
vehicle,manyvehiclesarenotsymmetrical!

•Alwayswearprotectiveeyewear.

sPeaKer PlaCemenT ConsiDeraTions

Inmostcases,yourspeakerswillbeplacedinto

factoryspeakerlocations.Ifyouhavesomespeaker
mountingflexibility,keepthefollowinginmind:
Lowermountinglocations,suchasthelowerfront
cornerofadoororakick-panelprovidethegreatest
pathlengthdistancesforthesoundemittedbythe
speakers.Forthisreason,theyaregenerallymore
desirablethanhighermountinglocations.Higher
mountinglocationswillusuallyresultinextreme
near-sidesoundstagebiaswhichcompromisesthe
stereolisteningexperience.

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