JL Audio C1-690X 6×9″ 2-Way Coaxial Speakers – Pair – #99045

Model Number: C1-690X
UPC: 699440990455
JL Audio
Model Number: C1-690X
UPC: 699440990455

JL Audio C1-690x 6×9″ 2-way Coaxial Car Audio Speakers #99045 – Pair

  • 6×9″ injection-molded mineral-filled polypropylene woofer cone with rubber surround
  • 1″ aluminum edge-driven dome tweeter
  • handles up to 50 watts RMS (75 watts peak power)
  • frequency response: 48-24,000 Hz
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Product Description

Features & Specifications



JL Audio C1-690x 6×9″ 2-way Coaxial Car Audio Speakers #99045 – Pair

C1-690x woofer drivers benefit from proprietary FEA modeling and JL Audio’s expertise in low-frequency driver design. This knowledge is used to create speakers that can play loudly, while maintaining a smooth, dynamic, low distortion sound. At the core of the C1-690x is a proprietary, stamped, steel 6 x 9-inch (150 x 230 mm) oval frame and a DMA-optimized motor system. A mineral-filled, injection-molded polypropylene cone is suspended with a rubber surround on the front, and a carefully engineered flat Conex® spider at the top of the voice coil, to precisely control motion and prevent impact between the voice coil and the back plate. Tinsel leads are carefully routed and attached to the spider to prevent fatigue and buzzing. These are the same kinds of features and materials normally found on much more expensive loudspeakers.

Equipped with a true, edge-driven, aluminum dome tweeter, C1 speakers stand further apart from others in its category with superior high-frequency clarity and definition. The tweeter’s design has inherently excellent off-axis response and high-frequency extension. It also benefits from the damping of a silk surround suspension and Ferrofluid in the voice coil gap, along with the superior strength of a neodymium magnet circuit. A true, 2nd order high-pass filter is employed to further enhance smoothness and improve power handling.

Starter speakers like no other

The JL Audio C1-690x are starter speakers like no other. After an extensive tour of JL Audio HQ, their engineering and development team talked about the current JL Audio lineup and upcoming projects. Given all the work they’re doing with premium car audio, many were surprised by how excited they were for customers to hear their workhorse C1 Series speakers. Designed for drivers simply looking for a sensible factory speaker replacement, not necessarily an audiophile-grade solution. Every JL Audio speaker must uphold the quality and sound associated with the name. You may be looking for something that’s just listenable, but what you’ll get with the JL Audio C1-690x is an audio experience that puts it at the top of its class. And then, just maybe, you’ll end up being a JL Audio fan for life.

What sets C1 apart?

JL Audio designed the JL Audio C1-690x speakers to be the very best they could be for the price. You’ll find solid construction and finish, along with some eye-popping flair in its striking yellow mineral-filled polypropylene woofer. That woofer delivers impactful lows and is specially designed for a natural roll-off transition to the highs handled by the tweeter. And it’s the aluminum edge-driven tweeter that gives the C1 Series its distinctive sound, setting it apart from other speakers at this price. You’ll hear crisp detail in the high frequencies, incredible imaging, and minimal distortion no matter how you power them.

Why no grilles?

Most folks have no use for aftermarket grilles, opting to use their factory grilles for a streamlined look. With that in mind, JL Audio doesn’t include grilles with the JL Audio C1-690x, opting instead to incorporate those savings into building an all-round better speaker.

C1-690x Dimensions

Lineart Bottom-View and Side-View of C1-690x Coaxial Speaker with dimension labels A-G
Frame Outer Diameter* (A) 6.38 x 9.33 in / 162 x 237 mm
Grille Tray Outer Diameter (B) N/A
Motor Outer Diameter (C) 3.54 in / 90 mm
Frontal Coaxial Tweeter Protrusion** (D) 0.41 in / 10 mm
Frontal Grille Protrusion (E) N/A
Mounting Hole Diameter (F) N/A
Mounting Depth (G) 2.75 in / 70 mm
Model C1-690X
Model: C1-690X
Product: JL Audio C1-690X 6×9″ 2-Way Coaxial Speakers – Pair – #99045

Speaker Size: 6X9
Design: 2-way
Tweeter Design: 1" Edge-Driven Dome
Impedance: 4 Ohms
Tweeter Composition: Aluminum
Woofer Composition: Mineral-Filled injection-Molde
Woofer Surround: Rubber

Sensitivity (1W at 1 meter): 91.5
Sensitivity at 2.83 volts: 94
Frequency Response: 39 – 22k Hz
Minimum RMS Wattage: 10
Maximum RMS Wattage: 60
Peak Power Handling: 225 Watts
Top-mount Depth: 2 13/16"
Bottom-mount Depth: 3 9/16"
Mounting Height: 0.374"

What's in the box

JL Audio C1-690x owner's manual
Two 2-way speakers
2 Bottom mount brackets
Eight 1-1/2" Screws (#8)
8 Speed clips
Two 0.187" Crimpable female quick slides
Two 0.110" Crimpable female quick slides
Owner's manual

Speaker Design

2-Way, Coaxial

Speaker Sensitivity

91 – 95 db

Speaker Size

6" x 9"

RMS Power

201 to 400 Watts


4 Ω

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JL Audio Canada 1-Year Manufacturer’s Limited Warranty


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