JL Audio C2-690tx Oval Speakers
Product Overview
Coaxial 3-Way Speaker System: 6 x 9-inch (150 x 230 mm) Woofer, 2-inch (51 mm) Cone Mid-Range, 0.75-inch (19 mm) Silk Dome Tweeter | 6x9
C2 systems deliver sparkling high-frequency detail, smooth mid-range and powerful mid-bass, thanks to real silk dome tweeters and precision-engineered woofer designs.
The C2-690tx system features 6 x 9-inch (150 x 230 mm) woofers with mineral-filled polypropylene cones, long excursion capabilities and stamped steel frames. The woofer design benefits from JL Audio's vast woofer design experience and advanced modeling systems.
The 6 x 9-inch (150 x 230 mm) format is a direct fit in many vehicles.
The Mid-Range driver is ferrofluid-cooled, with a 2-inch Mylar® cone diaphragm to smoothly bridge the gap between the woofer and the dome tweeter.
Tweeters are mounted next to the mid-range driver and built with 0.75-inch silk dome diaphragms that deliver smooth, extended response, on and off axis. The small size of the C2 tweeter minimizes tweeter protrusion, allowing C2 coaxials to fit behind most factory speaker grilles.
Woofer grilles are included, each consisting of a black grille tray with satin silver accents and a black steel mesh grille with an electroformed JL Audio logo.
Sonic character: Clean and Dynamic
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Continuous Power Handling (RMS) |
70 W |
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Recommended Amplifier Power (RMS) |
15 - 125 W / Ch. |
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System Efficiency |
93 dB @ 1 W / 1 m |
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System Nominal Impedance |
4 Ω |
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System Frequency Response |
53 Hz - 22 KHz ± 3 dB |
Coaxial Physical Specifications
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Frame Outer Diameter* (A) |
6.40 x 9.33 in / 163 x 237 mm |
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Grille Tray Outer Diameter (B) |
6.75 x 9.63 in / 172 x 245 mm |
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Motor Outer Diameter (C) |
3.94 in / 100 mm |
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Frontal Coaxial Tweeter Protrusion** (D) |
0.75 in / 19 mm |
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Frontal Grille Protrusion*** (E) |
0.98 in / 25 mm |
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Mounting Hole Diameter (F) |
N/A |
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Mounting Depth (G) |
3.06 in / 78 mm |
Silk Dome Tweeter
Summary:
Light, fast moving silk dome material promotes high-frequency accuracy.
Detailed Information:
Silk is a natural material with inherently good characteristics as a tweeter diaphragm. In addition to being very light in weight, silk exhibits excellent damping properties, which reduces ringing and resonances in the tweeter’s passband, leading to a smooth, pleasing high-frequency character free from unnatural sibilance or exaggerated brightness. Compared to a harder material dome, a silk tweeter does not exhibit as much ultra-high frequency extension, but is preferred by many audiophiles for its overall balance.
Frequently Asked Questions (FAQ)
Q: Do I need an external amplifier to run the JL Audio C2-690tx speakers?
A: No, because of their high efficiency ($93\text{ dB @ } 1\text{W/1m}$), they will sound noticeably clearer and louder than stock speakers when powered by a standard factory radio. However, pairing them with an external amplifier delivering $50\text{--}100\text{W RMS}$ per channel will significantly improve mid-bass performance and dynamic headroom.
Q: Will these fit behind my vehicle's original factory grilles?
A: In most cases, yes. The C2-690tx is designed with minimal tweeter protrusion ($0.75\text{ inches / } 19\text{ mm}$), allowing it to fit behind factory door panels or rear package-tray grilles in most standard 6x9 speaker locations.
Q: What is the advantage of a silk dome tweeter over metal dome tweeters?
A: Silk dome tweeters offer natural damping, which prevents harsh resonances and listening fatigue. They produce smooth, detailed high frequencies that sound warm and accurate rather than bright or shrill.
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