JL Audio


JL Audio C2-400x C2 Series 4" 10cm Coaxial Car Door Dash Speakers 35w RMS Pair

JL Audio C2-400x C2 Series 4" 10cm Coaxial Car Door Dash Speakers 35w RMS Pair

JL Audio C2-400X

Evolution™ C2 Series 4" 2-way car speakers


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Product Information

Coaxial Speaker System: 4-inch (100 mm) Woofer, 0.75-inch (19 mm) Silk Dome Tweeter

The Evolution 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 C2-400x 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.


  • 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* (A)    4.02 in / 102 mm
  • Grille Tray Outer Diameter (B)    5.20 in / 132 mm
  • Motor Outer Diameter (C)    2.36 in / 60 mm
  • Frontal Coaxial Tweeter Protrusion** (D)    0.56 in / 14 mm
  • Frontal Grille Protrusion*** (E)    0.66 in / 17 mm
  • Mounting Hole Diameter (F)    3.81 in / 97 mm
  • Mounting Depth (G)    1.81 in / 46 mm

*Does not take into account mounting tabs

**Frontal coaxial tweeter protrusion measured from mounting surface

***Frontal grille protrusion measured from mounting surface

What's Included

  • Two 4" 2-way speakers
  • 2 Grilles
  • Two 4x6 adapter brackets
  • 8 Self-tapping screws (#8 x 1-3/8")
  • 8 Speed clips
  • 4 Self-tapping screws (#8 x 8mm)
  • 2 Crimpable female quick slides (0.205"/5.2mm)
  • 2 Crimpable female quick slides (0.11"/2.8mm)
  • 2 JL Audio logo grille badges
  • Owner's Manual
  • Paper template

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