JL Audio C2-400X 4″ Coaxial Speaker – Pair – #99612


Condition: New

JL Audio C2-400X #99612 – 4″ Coaxial Speaker – Pair

  • 2-way 4″ speakers (pair)
  • injection-molded mica-filled polypropylene woofer with butyl rubber surround
  • 3/4″ silk dome tweeter
  • built-in crossover network
  • 4-ohm impedance

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SKU: 99612 Item #: 99612 Category:

Product Description

JL Audio C2-400X #99612 – 4″ Coaxial Speaker – Pair

The JL Audio C2-400X 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 JL Audio C2-400X system features 4-inch (100 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.

Breakaway mounting tabs on the woofer frame allow the C2-400x to be installed in four-hole or two-hole configurations. Injection-Molded adaptor plates are also included to allow mounting of the C2-400x speakers into a 4 x 6 (100 x 150 mm) speaker location.

Tweeters are coaxially mounted 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.

Speaker 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

Sold as a pair.



Additional Information

Weight 1.2 kg
RMS Power

36 to 55 Watts

Speaker Design

2-Way, Coaxial


– Continuous Power Handling (RMS) 35 W
– Peak Music Power 105 W
– Recommended Amplifier Power (RMS) 10 – 50 W / Ch.
– System Efficiency 84.5 dB @ 1 W / 1 m
– System Nominal Impedance 4 Ω
– System Frequency Response 71 Hz – 22 KHz ± 3 dB
– Frame Outer Diameter 4.02 in / 102 mm
– Grille Tray Outer Diameter 5.20 in / 132 mm
– Motor Outer Diameter 2.36 in / 60 mm
– Frontal Coaxial Tweeter Protrusion 0.56 in / 14 mm
– Frontal Grille Protrusion 0.66 in / 17 mm
– Mounting Hole Diameter 3.81 in / 97 mm
– Mounting Depth 1.81 in / 46 mm

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JL Audio 1 Year Limited Warranty


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