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JL Audio C7-100ct — 1" dome tweeter

JL Audio

In stock

$299.99

Highlights

  • Speaker Size 1"
  • Speaker Type Tweeter
  • Peak Power 100W
SKU:
C7-100ct
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Specifications

Specifications

Speaker Size
1"
Speaker Type
Tweeter
Peak Power
100W
Sensitivity
48 dB

About the JL Audio C7-100ct — 1" dome tweeter

From the manufacturer

JL Audio C7-100ct 1-inch (25 mm) Component Tweeter, Single Introduction C7 is the pinnacle of JL Audio automotive loudspeaker design, benefiting from our most advanced development tools and a complete commitment to precision manufacturing. The C7-100ct component tweeter is designed to deliver unparalleled high-frequency performance. Utilizing a corundum ceramic-coated aluminum alloy diaphragm suspended via a treated silk, s-roll surround, it provides spectacularly detailed reproduction of treble frequencies with outstanding off-axis response. Distortion and non-linearities have been minimized through critical optimization of dynamic motor and suspension behaviors. Passive crossover networks are not included with C7 drivers, as they are designed for active systems. Instead, we recommend a high-quality tuning DSP, such as the JL Audio TwK™ 88 or D8, and a dedicated amplifier channel for each C7 loudspeaker in the system. Precise setup of equalization, delay and crossover filters will ensure optimal in-vehicle performance. C7-100ct Design Notes:Dome Diaphragm: Corundum ceramic coated aluminum alloy diaphragm exhibits high stiffness, very low mass and excellent environmental stability. It also helps the tweeter dome to hold its shape and operate as a true piston at higher frequencies, without a penalty in moving mass. Suspension Design: The diaphragm's motion is centered, sprung and damped by a treated silk, s-roll surround. Ferrofluid in the magnetic gap acts as a rear suspension element in this design. The two combine to provide optimum damping without unduly restricting excursion. Motor Design: The C7-100ct employs a high-density magnetic circuit with a neodymium magnet and U-Yoke motor topology. An under-hung voice coil is employed, wound with copper-clad aluminum wire onto an aluminum voice coil former. Motor magnetics have been precisely optimized utilizing advanced FEA tools to lower even order distortion and IMD/AMD. Acoustical Design: The shape of the tweeter housing is designed to boost sensitivity in a very specific bandwidth, helping to flatten the frequency response. It also provides improved control of directivity. Design Bandwidth:With 48 dB/octave filters: 3,000 Hz - 30,000 HzWith 24 dB/octave filters: 4,000 Hz - 30,000 HzWith 12 dB/octave filters: 5,000 Hz - 30,000 Hz Sold individually, with flush and surface mounting fixtures and hardware. One 15μF tweeter protection capacitor is also included. The performance of every C7 driver is tested and verified, then assigned a unique serial number. Register your C7 loudspeaker online to receive a copy of its specific Acoustical Test Report. General Specifications Continuous Power Handling (RMS) 100 W Peak Music Power 200 W Recommended Amplifier Power (RMS) 50 - 150 W / Ch. Nominal Impedance 4 Ω Frequency Response 3 kHz - 30 KHz ± 3 dB Parameters Voice Coil Resistance (Re) 3.20 Ω Free Air Resonance (Fs) 1450 Hz Reference Efficiency (no) 0.267% Efficiency 86.5 dB @ 1W / 1m 92.5 dB @ 1W / 0.5m Sensitivity 89.5 dB @ 2.83V / 1m Physical Specifications Flush Mount Fixture Diameter (A1) 2.13 in / 54 mm Surface Mount Fixture Diameter (A2) 2.16 in / 55 mm Flush Mount Mounting Hole Diameter (B) 1.88 in / 48 mm Flush Mount Mounting Depth (C) 0.73 in / 19 mm Flush Mount Tweeter Frontal Protrusion (D1) 0.33 in / 8 mm Surface Mount Tweeter Frontal Protrusion (D2) 1.06 in / 27 mm

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Reviews

7 Reviews Hide Reviews Show Reviews

  • 3
    Works, took some patience

    Posted by Jessica N. on 1st Jul 2026

    Confirmed size and impedance against the 2012 Chevrolet Tahoe's front a-pillar spec before ordering, and it matched. Mounting took more patience than expected getting the screws started evenly. Output is fine for daily driving, just not a dramatic jump over stock.

  • 5
    Exactly as described

    Posted by Jessica A. on 11th May 2026

    Installed the 1" set in my 2012 Chevrolet Tahoe's front a-pillar location — dropped right in. 100W peak runs clean off the stock deck, no separate amp needed yet. Clear top end, no rattle at higher volume. Would buy the matching pair for the other side.

  • 5
    Great fit, sounds right

    Posted by Anthony J. on 6th Mar 2026

    Picked these for the 2012 Chevrolet Tahoe's front a-pillar spot instead of the tired factory driver. 100W peak was plenty on the stock head unit. Fit against the factory opening with no modification. Noticeably clearer than stock, especially in the mids.

  • 4
    Good, one small note

    Posted by Marcus H. on 1st Mar 2026

    Good upgrade for the 2012 Chevrolet Tahoe's front a-pillar location. 100W peak matched the factory wiring fine. only ding is the mounting depth ran a little tight against the door hardware, worth checking clearance first. Sound is a clear step up from the factory speaker.

  • 5
    Solid upgrade

    Posted by Susan K. on 21st Feb 2026

    Picked these for the 2012 Chevrolet Tahoe's front a-pillar spot instead of the tired factory driver. 100W peak was plenty on the stock head unit. Fit against the factory opening with no modification. Noticeably clearer than stock, especially in the mids.

  • 4
    Works well

    Posted by Michael W. on 13th Feb 2026

    Good upgrade for the 2012 Chevrolet Tahoe's front a-pillar location. 100W peak matched the factory wiring fine. only ding is the mounting depth ran a little tight against the door hardware, worth checking clearance first. Sound is a clear step up from the factory speaker.

  • 5
    Solid upgrade

    Posted by Anthony B. on 9th Feb 2026

    Picked these for the 2012 Chevrolet Tahoe's front a-pillar spot instead of the tired factory driver. 100W peak was plenty on the stock head unit. Fit against the factory opening with no modification. Noticeably clearer than stock, especially in the mids.

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