JL Audio C2-400x 4" Coaxial Speaker System

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.

$199.00

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.


Specifications

General Specifications

  • Continuous Power Handling (RMS) 35 W
  • Peak Music Power 105 W
  • Recommended RMS Amplifier Power (per Ch.) 10 - 50 W
  • System Efficiency 84.5 dB @ 1 W / 1 m
  • System Nominal Impedance 4 Ω
  • System Frequency Response 71 Hz - 22 KHz ± 3 dB

Coaxial Physical Specifications

  • Frame Outer Diameter* (A) 4.02 in / 102 mm
  • Grille Tray Outer Diameter (B) 5.20 in / 132 mm
  • Magnet 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

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