OWNER’S MANUAL
6 x 9-inch (150 x 230 mm) 2-Way Component System
Thank you for choosing JL Audio loudspeakers for
your automotive sound system.
We strongly recommend that you have your new loudspeakers installed by
an authorized JL Audio dealer. Your authorized dealer has the training,
expertise and installation equipment to ensure
optimum performance of these loudspeakers in your vehicle.
If you decide to install the loudspeakers yourself, please read this manual
thoroughly to familiarize yourself with their installation
requirements and setup procedures.
Should you have any questions regarding the instructions in this manual,
please contact your authorized JL Audio dealer for assistance, or call the
JL Audio Technical Support Department at (954) 443-1100
during business hours (USA - Eastern Time Zone).
A
B
A
Woofer Physical Dimensions
Frame Outer Diameter (A) 6.38 x 9.33 in. / 162 x 237 mm
Motor Outer Diameter (B) 3.54 in. / 90 mm
Mounting Depth (C) 2.75 in. / 70 mm
C
A
C
B
D
D
A
Tweeter Fixture Physical Dimensions Flush-Mount Surface-Mount
Fixture Outer Diameter (A) 1.97 in / 50 mm 2.01 in / 51 mm
Fixture Mounting Hole Diameter (B) 1.75 in / 45 mm N/A
Fixture Mounting Depth (C) 0.40 in / 10 mm N/A
Tweeter Frontal Protrusion (D) 0.32 in / 8 mm 0.87 in / 22 mm
B
C
A
Crossover Network Physical Dimensions
Width (A) 1.96 in / 50 mm
Height (B) 0.90 in / 23 mm
Depth (C) 1.34 in / 34 mm
Due to ongoing product development, all specifications are subject to change without notice.
2 | JL Audio - C1-690 Owner’s Manual
C1-690 SPECIFICATIONS:
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: 39Hz - 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
Twe eter:
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) C1-690cw 6 x 9-inch (150 x 230 mm) woofers
• Two (2) C1-100ct 1.0 -inch (25 mm) tweeters
• Two (2) surface-mount tweeter f ixtures
• Two (2) C1-100cthp in-line, high-pass filters on
4 ft. (1.2 m) wire harnesses
• Two (2) metal spring clips (for t weeter flush-mounting)
• Eight (8) #8 x 1.50-inch (38mm) she et metal screws
• Four (4) #6 x .625-inch (22 mm) she et metal screws
• Eight (8) mounting clips
• Two (2) 4.7 mm female crimpable connectors
• Two (2) 2.8 mm female crimpable connectors
• Two (2) 10mm stud bolts with fixed M4 nut
• Two (2) 25mm stud bolts with fixed M4 nut
• Two (2) M5 nuts
• 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.
SPEAKER PLACEMENT CONSIDERATIONS
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.
WARNING
Prolonged exposure to sound pressure levels in
excess of 100dB can cause permanent hearing
loss. These high-performance loudspeakers can
exceed this level. Please exercise restraint in their
operation in order to preserve your ability to enjoy
their fidelity.
Due to ongoing product development, all specifications are subject to change without notice.
3
SPEAKER PLACEMENT CONSIDERATIONS
A component system gives you the ability to place
the woofer and tweeter separately in your vehicle
interior. This can be good or bad, depending on how
it’s done. As a general rule, the tweeters should be
placed relatively close to the woofers for best tonal
balance and most coherent imaging (the closer, the
better). Any separation greater than 8 inches (20 cm)
is likely to result in degraded sound quality.
Avoid placing tweeters where they will be blocked
by objects in the interior of the car (including seated
occupants). When selecting a mounting location,
look at both sides of the car to make sure that this
location is clear on both sides.
You can always experiment with tweeter
placement before committing to a f inal mounting
location. Simply connect the rest of the system and
allow plenty of wire length for the tweeters. Using
hook and loop or similar material, attach the tweeters
in different locations until you find the one where
they perform best.
Woofers will usually be placed into factory
speaker locations. If you have some woofer 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 t he
woofer. For this reason, they are generally more
desirable than higher mounting locations. Higher
mounting locations often result in extreme nearside soundstage bias which compromises the stereo
listening experience.
DIAGRAM A:
Less Desirable Speaker Placement
DIAGRAM B:
More Desirable Speaker Placement
WARNING
Double check the clearance for both speakers
before proceeding. Many cars are different from
one side to the other!
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