What sets C1 apart?
JL Audio designed the C1 Series C1-400x 4" 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 C1 Series, opting instead to incorporate those savings into building an all-round better speaker.
Features and Specs
|Tweeter Design||1" Edge-Driven Dome|
|Woofer Composition||Mineral-Filled injection-Molde|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
|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||100|
|Peak Power Handling (Watts)||225|
|Top-mount Depth (Inches)||2 3/4|
|Bottom-mount Depth (Inches)||3 9/16|
|Cutout Diameter or Length (inches)||0|
Woofers: Each JL Audio C1 woofer features a mineral-filled, injection-molded polypropylene cone with a rubber surround.
Tweeters: The 1" edge-driven, aluminum dome tweeters are damped by a silk surround suspension. Flush and surface tweeter mounting brackets are included.
|Frame Diameter||Cutout Diameter||Mounting Height||Mounting Depth|
|Surface Mount||2.005"||Screw Holes Only||0.872"||
0.535" (Screw Depth)
Tweeter Crossovers: The in-line tweeter crossovers are 2nd order (12 dB/octave slope) and the 31" input and 14" output wires are attached. The input wires are terminated with female quick slides that plug into terminals on the woofers and the output wires are terminated with male quick slides that plug into the terminals on the wires attached to the tweeters. The woofer is unfiltered, using its engineered roll-off characteristics to blend with the tweeter. The electronic tweeter protection circuit is designed to minimize the possibility of tweeter failure. It monitors current going to the tweeter and will disconnect the tweeter from the signal when it senses overload. Once the volume has been reduced, the protection circuit will reset itself automatically.
Power Handling: JL Audio lists two power figures in the manual; 60 watts continuous power handling and recommended amp power 10-100 watts RMS. We've listed the RMS power recommendation in the specs table.
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