JL Audio C1-690x Owner's Manual

3

Continuous Power Handling: 60 Watts

Recommended Amp Power: 10-100 Watts per channel (RMS)

Efficiency: 91.5 dB @ 1W / 1m  |  97.5 dB @ 1W / 0.5m

Sensitivity: 94.0 dB @ 2.83V / 1m

Nominal Impedance: 4 ohm

Frequency Response: 39 Hz - 22 kHz ± 3 dB

Woofer: 

Injection-molded, mineral-filled, polypropylene cone

Rubber, positive roll surround

1.2 in. (30 mm) diameter voice coil

Flat, Conex® spider with integrated lead wires

Ferrite Magnet

Tweeter: 

Edge-driven, silk-suspended aluminum dome

1.0 in. (25 mm) diameter diaphragm / voice coil

Ferrofluid cooling / damping

Neodymium magnet

Crossover: 

Natural roll-off, low-pass

2nd order, high-pass filter with inductor and  

electrolytic capacitor

Included Components and Parts:

•  Two (2) C1-690x 6 x 9-inch (150 x 230 mm) coaxial 

loudspeakers

• Eight (8) #8 x 1.50-inch (38 mm) sheet metal screws

• Eight (8) mounting clips

• Two (2) 4.7 mm female crimpable connectors

• Two (2) 2.8 mm female crimpable connectors

•  Two (2) bottom-mount spacer adaptor rings

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.

Grilles are not included with C1 speakers, as they 

are designed for installation into OEM (factory) 
speaker locations, located behind factory grilles. 
Should you need grilles, you will need to purchase 
aftermarket grilles separately.