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.
|3/4" Edge-Driven Dome
|Sensitivity (1W at 1 meter)
|Sensitivity at 2.83 volts
|48 - 24k Hz
|Minimum RMS Wattage
|Maximum RMS Wattage
|Peak Power Handling (Watts)
|Top-mount Depth (Inches)
|Bottom-mount Depth (Inches)
|Cutout Diameter or Length (inches)
Woofers: Each JL Audio C1 speaker features a mineral-filled, injection-molded polypropylene woofer cone with a rubber surround.
Tweeters: The 3/4" edge-driven, aluminum dome tweeters are damped by a silk surround suspension.
Size Classification Note: These speakers are marketed as 6-1/2"; they will fit in standard 6-1/2" speaker openings, but do not use the standard 6-1/2" speaker bolt pattern. In order to install them in standard 6-1/2" speaker openings you must drill new screw holes. If new holes are drilled in the mounting surface of the car, no bracket is needed. If drilling in the car is not an option, the included brackets can be used, which have standard 6-1/2" mounting holes, the Ford non-symmetric four hole pattern, and non-standard 6-3/4" three and four hole patterns. Please enter your vehicle information to confirm fit.
Power Handling: JL Audio lists two power figures in the manual; 50 watts continuous power handling and recommended amp power 10-75 watts RMS. We've listed the RMS power recommendation in the specs table.
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