JL Audio 1" Aluminum Dome Tweeters, Pair (99049)

Save $31
JL AudioSKU: C1100CT

Sale price $119.95 Regular price$149.99
You may be looking for something that's just listenable, but what you'll get with the C1 Series is an audio experience that puts it at the top of its class. And then, just maybe, you'll end up being a JL Audio fan for life.

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

Speaker Size 1
Design 1-way
Tweeter Design 1" Edge-Driven Dome
Impedance (Ohms) 4
Tweeter Composition Aluminum
Woofer Composition ---
Woofer Surround ---
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity (1W at 1 meter) 91.5
Sensitivity at 2.83 volts 94.5
Frequency Response 3600 - 22k Hz
Minimum RMS Wattage 20
Maximum RMS Wattage 60
Peak Power Handling (Watts) ---
Top-mount Depth (Inches) 0 15/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 1 3/4


Tweeters: The 1" edge-driven, aluminum dome tweeters are damped by a silk surround suspension. Flush and surface tweeter mounting brackets are included.

Tweeter Dimensions:


  Frame Diameter Cutout Diameter Mounting Height Mounting Depth
Flush Mount 1.970" 1.734" 0.330" 0.931"
Surface Mount 2.005" Screw Holes Only 0.872" 0.535" (Screw Depth)


Crossovers: The in-line tweeter crossovers are 2nd order (12 dB/octave slope) and the 30" input and 15" output wires are attached. The input wires are terminated with female quick slides and the output wires are terminated with male quick slides that plug into the terminals on the wires attached to the tweeters. 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.

Crossover Dimensions:

  • Width: 2" (3" including wire)
  • Height: 1"
  • Depth: 1-3/8"

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