JL Audio C3-100CT Evolution C3 Series 1" 75W RMS (225W Peak Power Handling) 4 Ohms, Car Component Tweeters (Pair)
We are a JL Audio authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
- • (2) C3-100ct Tweeters (with 4" wires attached)
- • (2) 60" Lengths of speaker wire with in-line crossovers (C3-100cthp)
- • (2) Flush mount housings
- • (2) Surface mount housings
- • (2) Metal spring clips (for flush mounting)
- • (4) 1" Flat head screws
- • (2) M4x30mm Pan-head machine screws
- • Owner's Manual
Why Choose JL Audio C3-100CT Car Tweeters?
Smooth & Detailed High-Frequency Performance
These 1-inch silk dome tweeters deliver rich, realistic, and non-fatiguing highs, ensuring a smooth listening experience even at higher volumes. Their extended response provides powerful, accurate sound both on-axis and off-axis, filling your vehicle with crisp, well-balanced clarity from every angle.
Versatile Mounting & Optimized
Enjoy flexible installation with both flush-mount and surface-mount options, allowing the tweeters to fit seamlessly into any setup. These tweeters can also be mounted coaxially onto C3 woofers using the included fixtures, making them perfect for C3 Component/Coaxial Systems. Inline 12 dB/octave high-pass filters with built-in tweeter protection ensure clean, accurate highs while safeguarding your system for long-lasting performance.
High-Fidelity Tweeter Performance
Engineered to perform above 4 kHz with a precise 12 dB/octave high-pass slope, these tweeters deliver smooth, controlled high-frequency reproduction. Their clean and powerful sonic character makes them an excellent choice for audiophiles who demand accurate, high-resolution sound in any listening environment.
JL Audio C1-075CT vs C1-100CT vs C2-075CT vs C3-100CT vs C6-100CT vs C7-100CT | Which JL Audio Tweeter Is Best?
| JL Audio Tweeter Performance Battle |
JL Audio C1-075CT
0.75" Aluminum Dome Component Tweeters
BUDGET PICK
- • 0.75" Aluminum Dome Tweeter
- • 50 Watts RMS
- • 6 Ohm Impedance
- • Built-In High-Pass Filter
- • Crisp High Frequencies
- • Factory Speaker Upgrade
- • Easy Installation
- • Great Entry-Level Choice
|
JL Audio C1-100CT
1" Aluminum Dome Component Tweeters
BEST VALUE
- • 1" Aluminum Dome Tweeter
- • 60 Watts RMS
- • 4 Ohm Impedance
- • Higher Output Capability
- • Detailed Highs
- • Great Efficiency
- • Easy to Amplify
- • Excellent Daily Driver
|
JL Audio C2-075CT
0.75" Silk Dome Component Tweeters
SMOOTHEST SOUND
- • 0.75" Silk Dome Tweeter
- • Warm & Natural Sound
- • Reduced Listening Fatigue
- • Smooth High Frequencies
- • Excellent Imaging
- • Passive Crossover Included
- • Ideal for SQ Systems
- • Premium Upgrade from C1
|
JL Audio C3-100CT
1" Silk Dome High-Performance Tweeters
BEST SQ VALUE
- • 1" Silk Dome Tweeter
- • Enhanced Detail Retrieval
- • Excellent Sound Staging
- • Smooth Frequency Response
- • High Power Handling
- • Audiophile Performance
- • Passive or Active Compatible
- • Great SQL Choice
|
JL Audio C6-100CT
1" Premium Silk Dome Audiophile Tweeters
AUDIOPHILE PICK
- • 1" Premium Silk Dome Tweeter
- • 80 Watts RMS
- • Exceptional Detail
- • Natural Tonal Balance
- • Wide Soundstage
- • Designed for DSP Systems
- • Competition-Level Sound Quality
- • Active System Ready
|
JL Audio C7-100CT
1" Ceramic-Coated Aluminum Dome Reference Tweeters
BEST OVERALL
- • 1" Ceramic-Coated Aluminum Dome
- • Reference-Grade Performance
- • Outstanding Resolution
- • Exceptional Imaging
- • Ultra-Wide Frequency Response
- • Highest Detail Retrieval
- • Competition Sound Quality
- • Flagship JL Audio Tweeter
|
JL Audio C3-100ct Installation & Compatibility Guide | Convertible Tweeter Setup, Wiring & System Matching
JL Audio C3-100ct Install & Compatibility Guide
Convertible Component Tweeters with Flexible OEM or Audiophile-Level Installation Options
System Overview
Speaker Type: 1" Silk Dome Convertible Component Tweeters
Power Handling: 75W RMS (recommended 25–150W per channel)
Impedance: 4 Ohms
Frequency Range: 4 kHz – 25 kHz
Install Difficulty: Moderate (Flexible Configuration System)
Best Use: OEM Upgrade or Full Component Audiophile Systems
Step 1: Choose Installation Type (Key Advantage)
The JL Audio C3-100ct is a convertible tweeter system. You can install it in multiple configurations depending on your build.
Option A – Component Setup: Separate tweeter installed in sail panels, A-pillars, or dash
Option B – Coaxial Setup: Mounted directly on C3 woofers for factory-style integration
Step 2: Mounting Options
Flush Mount: Clean OEM appearance, ideal for pillars or dash builds
Surface Mount: Flexible positioning and easier installation with no cutting required
Coaxial Mount: Attaches directly to C3 woofer for simplified installation
Step 3: Wiring & Crossover Setup
The C3-100ct includes dedicated JL Audio inline crossovers with a true two-way filtering system. These are REQUIRED for correct operation unless using DSP active tuning.
Wiring Flow: Amplifier → JL Crossover → Tweeter (or woofer in coaxial mode)
Polarity: Always maintain correct + / – alignment
Important: Do NOT bypass crossovers in passive setup unless fully DSP-controlled
Step 4: System Testing
Test system at low volume before final installation. Verify smooth transition between tweeter and midrange drivers, correct stereo imaging, and absence of distortion or imbalance.
Compatibility Guide
Factory Systems: Compatible with most OEM systems (Toyota, Honda, Ford, Nissan, Mazda, etc.) when using proper mounting adapters or C3 woofer integration.
Amplifier Matching: Best performance with 25–150W RMS per channel clean amplifier power.
DSP Systems: Highly recommended for advanced tuning, crossover control, and staging optimization.
Head Unit Only: Works with factory radios but benefits significantly from external amplification.
Impedance: 4Ω system compatible with most aftermarket amplifiers and OEM upgrades.
Fitment Notes
• Designed for maximum installation flexibility (component or coaxial use)
• Some vehicles may require adapter rings or minor trimming for flush mounting
• Proper crossover usage is critical for preventing distortion or tweeter damage
• Soundstage improves significantly when tweeters are aimed toward listening position
• Door damping is highly recommended for best system balance
Pro Tip: The JL Audio C3-100ct performs best in fully tuned systems using DSP or high-quality active crossovers. Proper staging and crossover alignment will dramatically improve imaging and clarity.
Frequently Asked Questions (FAQ)
- • Why do my JL Audio C3-100ct tweeters sound too bright or aggressive after installation?
This is one of the most reported real-user experiences. The C3 series is highly detailed and can sound “bright” in untreated doors or reflective interiors. Most users fix this by reducing EQ treble, adjusting DSP tuning, or aiming tweeters away from direct earline reflection.
- • Why do my C3-100ct tweeters overpower my midrange speakers?
Users often report imbalance because the C3 tweeters are very efficient and revealing. If gain matching is not done correctly, highs dominate the soundstage. Proper tuning or attenuation at the DSP/amplifier level is required for balance.
- • Do I really need to use the JL Audio crossover with the C3-100ct?
Yes. Real-world installs show that bypassing or mixing crossovers leads to harsh sound, distortion, or potential tweeter damage. The included JL inline high-pass filters are designed specifically to protect the silk dome tweeter and maintain correct frequency separation.
- • Why do my tweeters distort at high volume even though they are rated higher than my old ones?
This is usually caused by amplifier clipping or incorrect gain setup. Many users assume higher-end tweeters can handle any volume, but distortion typically comes from the amp, not the tweeter itself.
- • Can I run JL C3-100ct tweeters directly from a factory head unit?
Yes, but performance will be limited. Users report good basic output, but the C3-100ct truly shines when paired with a clean external amplifier or DSP-controlled system.
- • Why does my system sound worse after upgrading to C3 tweeters?
This is a very common tuning issue. The C3 tweeters reveal more detail than stock speakers, which can expose poor EQ settings, weak midrange speakers, or untreated doors. The system itself is not worse—just more revealing.
- • Why is one tweeter louder or clearer than the other?
Most cases are caused by polarity reversal, incorrect wiring at the crossover, or uneven DSP channel gain. Swapping left/right channels is a common troubleshooting step used by installers.
- • Do C3-100ct tweeters need break-in time?
Yes. Many users report that silk dome tweeters sound slightly sharp at first but become smoother after several hours of use as the suspension settles.
- • Are the C3-100ct good for factory upgrade systems?
Yes. However, users note that they perform best when paired with upgraded mids and proper tuning. Installing them alone into a factory system can make imbalance more noticeable due to their high detail level.
- • What is the most common installation mistake with C3 tweeters?
The most common issue is incorrect system tuning—especially no gain matching or improper crossover use. Another frequent issue is poor mounting position, which causes harsh reflections inside the cabin.
- Diameter : 1 Inch
- Sensitivity : 90 dB
- Frequency Response : 4000-25000 Hz
- Peak Power Handling : 225 Watts
- RMS Power Handling : 75 Watts
Features:
- Silk Dome Tweeters: Features 1-inch (25 mm) silk dome tweeters, known for realistic, non-fatiguing, high-frequency performance.
- Extended Response: Delivers powerful and extended response both on and off axis.
- Mounting Options: Includes flush-mounting and surface-mounting fixtures for versatile installation options.
- Coaxial Installation: Can be installed coaxially onto C3 woofers using provided fixtures in C3 Component / Coaxial Systems.
- High-Pass Filters: Inline 12 dB/octave high-pass filters with tweeter protectors are included to ensure optimal performance.
- Frequency Range: Designed to operate above 4 kHz with a minimum high-pass slope of 12 dB/octave.
- Sonic Character: Offers clean and powerful sonic character, ideal for audiophiles seeking high-quality sound.
Specifications:
- Continuous Power Handling (RMS) 75 W
- Peak Music Power* 225 W
- Recommended Amplifier Power (RMS) 25 - 150 W / Ch.
- System Efficiency 90.0 dB @ 1 W / 1 m
- System Nominal Impedance 4 Ω
- System Frequency Response 4 kHz - 25 KHz ± 3 dB
- Flush Mount Fixture Diameter (A1) 2.12 in / 54 mm
- Surface Mount Fixture Diameter (A2) 1.93 in / 49 mm
- Flush Mount Mounting Hole Diameter (B) 1.875 in / 48 mm
- Flush Mount Mounting Depth (C) 0.71 in / 18.0 mm
- Flush Mount Tweeter Frontal Protrusion (D1) 0.32 in / 8 mm
- Surface Mount Tweeter Frontal Protrusion (D2) 0.95 in / 24 mm
- UPC: 699440990233
- Weight: 1
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
Do you own this product?
Write a review!
-
I replaced a set of c-2 tweeters because one stopped working . And WOW these things are amazing . Almost too loud if there is such a thing . Sound quality is crystal clear and very loud . Highly recommend
-
very expensive tweeters but worth every penny. the treble is on another class and they’re bright and so clear. hard to find that can match what these ones can deliver
-
Excellent tweeters! Very crisp and clear highs at any volume, effortlessly cutting through deep bass.
