JL Audio C7-100ct

JL Audio C7-100ct | C7 Series 1" Component Tweeter (Single)

The JL Audio C7-100ct (Part Number: 010-03128-00) represents the pinnacle of automotive high-frequency reproduction. This flagship tweeter is engineered from the ground up to deliver unparalleled clarity and a pure, precise audio experience. Featuring a unique corundum ceramic-coated aluminum dome, it is designed to perform as a true piston well beyond the limits of human hearing, making it the definitive choice for sophisticated active sound systems.

Product Highlights

Corundum Ceramic-Coated Diaphragm: The 1-inch (25 mm) aluminum alloy dome is treated with a specialized corundum ceramic coating. This material provides extreme stiffness and low mass, ensuring the dome maintains its shape at high frequencies to eliminate distortion and harshness.

Treated Silk S-Roll Surround: The diaphragm is suspended by a treated silk, s-roll surround that provides optimal damping without restricting excursion. This design helps the C7-100ct maintain a smooth, natural soundstage even during intense high-frequency peaks.

DMA-Optimized Neodymium Motor: Utilizing JL Audio’s proprietary Dynamic Motor Analysis (DMA), the high-density neodymium magnet and U-Yoke motor topology are precisely modeled to minimize even-order distortion. This results in incredibly faithful transient reproduction and crystalline detail.

Designed for Active Systems: These drivers are sold individually and do not include passive crossovers. They are intended for use with a high-quality Digital Signal Processor (DSP), such as a VXi amplifier, allowing the system designer to customize crossover points and timing for a perfect in-cabin blend.

Key Features

Acoustically Designed Housing: The shape of the tweeter housing is specifically engineered to boost sensitivity in a controlled bandwidth, helping to flatten the frequency response and improve directivity control across the dashboard.

Under-Hung Voice Coil: Wound with copper-clad aluminum wire onto an aluminum former, the under-hung voice coil design ensures minimal distortion and maximum control over the diaphragm's movement.

Ferrofluid Cooling: The magnetic gap is filled with ferrofluid to act as a secondary suspension element. This provides consistent thermal management and damping, allowing the tweeter to perform reliably during long, high-volume listening sessions.

Exceptional Bandwidth: Depending on your chosen crossover slope, the C7-100ct can reliably reproduce frequencies from 3,000 Hz all the way up to 30,000 Hz, revealing textures in high-resolution audio files that standard tweeters miss.

Technical Specifications

What’s In The Box?

• (1) C7-100ct Component Tweeter (Single)

• (1) 15 µF Protection Capacitor (Must be connected in all installations)

• (1) Flush-mount fixture & (1) Surface-mount fixture

• (1) Metal spring clip for flush mounting

• Mounting screws and owner's manual

• Ships within 1–3 business days from our warehouse
• Tracking included with every order
• Free 30-day returns if it doesn’t work for your setup

• 2-year manufacturer warranty
• Authorized dealer guarantee
• Real installer-backed support before and after purchase