JL Audio C3-650 6.5-Inch Convertible Component/Coaxial Speakers | 75W RMS | 2-Way Car Speaker System

Upgrade your car audio with the JL Audio C3-650 6.5-inch Convertible Component/Coaxial Speaker System, a versatile 2-way speaker set designed to work either as a separate component system or as a coaxial speaker setup. The system combines 6.5-inch (165 mm) woofers, 1-inch silk dome tweeters and external crossover networks, giving you flexibility in how the speakers are installed.

With 75W RMS continuous power handling, 90dB sensitivity, 4-ohm impedance and a 48Hz–25kHz frequency response, the C3-650 is engineered for clean, detailed and powerful car-audio performance.

⭐ Key Features

🔊 6.5-Inch 2-Way Speaker System

The C3-650 uses 6.5-inch / 165mm woofers paired with 1-inch / 25mm silk soft-dome tweeters. It is a genuine 2-way system designed to reproduce both low/mid frequencies and high frequencies through dedicated drivers.

🔄 Convertible Component or Coaxial Design

One of the key features of the C3-650 is its convertible design. The same speaker set can be configured as:

• Component speakers – separate woofer and tweeter installation
• Coaxial speakers – tweeter mounted at the centre of the woofer

This allows the system to adapt to different vehicle installation requirements.

⚡ 75W RMS Power Handling

The C3-650 provides 75W continuous RMS power handling, with JL Audio recommending an amplifier range of 25–150W RMS per channel.

🎵 DMA-Optimized Woofer

The woofer incorporates a DMA-optimized motor system designed to improve the woofer's performance and contribute to controlled bass response.

🎶 Mineral-Filled Polypropylene Cone

The 6.5-inch woofer uses a mineral-filled polypropylene cone combined with a rubber surround for the speaker's low-frequency driver construction.

✨ 1-Inch Silk Soft-Dome Tweeter

The system features 1-inch silk soft-dome tweeters with ferrofluid cooling and damping. The tweeters are designed to deliver smooth high-frequency reproduction.

🎚️ Adjustable Crossover Controls

The included external 2-way crossover networks feature four-position tweeter output adjustment and three-position midrange presence adjustment, providing multiple tuning combinations for the sound system.

❄️ Elevated Frame Cooling

JL Audio's Elevated Frame Cooling™ design helps improve airflow around the speaker motor structure and contributes to the system's power-handling capability.

🛡️ Tweeter Protection

The crossover network includes Polyswitch tweeter protection, helping protect the tweeter from excessive input conditions.

⭐ Why Choose JL Audio C3-650?

• 6.5-inch / 165mm 2-way speaker system
• 75W RMS continuous power handling
• Convertible component + coaxial installation
• 1-inch silk soft-dome tweeters
• DMA-optimized woofer motor system
• Mineral-filled polypropylene woofer cone
• Elevated Frame Cooling™ design
• External 2-way crossover networks
• Adjustable tweeter output
• Adjustable midrange presence
• 90dB sensitivity
• 4-ohm nominal impedance
• 48Hz–25kHz frequency response
• Flush-mount, surface-mount and coaxial tweeter mounting options

🎛️ Component or Coaxial Installation

Component Configuration

In component configuration, the 6.5-inch woofers and 1-inch tweeters are installed separately. The external crossover network connects the amplifier to the individual woofer and tweeter.

The supplied phase plugs remain installed on the woofer when the system is used in component configuration.

Coaxial Configuration

For coaxial installation, the tweeter can be mounted at the centre of the woofer. The phase plug is removed to accommodate the tweeter and tweeter post.

This convertible architecture makes the C3-650 particularly flexible for different vehicle speaker locations.

📋 Technical Specifications

📦 Package Includes

The C3-650 system includes:

• 2 × 6.5-inch C3-650 woofers
• 2 × 1-inch C3-100ct tweeters
• 2 × C3-650-XO crossover networks
• Woofer grilles
• Tweeter mounting fixtures
• Installation components as supplied with the system

🔧 Installation & Compatibility Notes

The C3-650 offers several installation options, including component, coaxial, flush-mount and surface-mount tweeter configurations.

Before installation:

• Check the vehicle's available speaker mounting depth and hole diameter.
• Confirm the 6.5-inch speaker fitment for the intended location.
• Choose component or coaxial configuration according to the vehicle's installation requirements.
• Use the supplied C3-650 crossover networks.
• Follow the JL Audio wiring configuration for the selected installation mode.
• Professional installation is recommended for correct mounting, wiring and tuning.

❓ Frequently Asked Questions

What size are the JL Audio C3-650 speakers?

The C3-650 uses 6.5-inch / 165mm woofers and 1-inch / 25mm tweeters.

Is the JL Audio C3-650 a component speaker?

Yes, it is a 2-way convertible component system that can also be configured as a coaxial system.

Can the C3-650 be used as coaxial speakers?

Yes. The tweeters can be mounted at the centre of the woofers for a coaxial configuration.

What is the RMS power rating?

The C3-650 is rated at 75W RMS continuous power handling.

What amplifier power does JL Audio recommend?

JL Audio specifies a recommended amplifier range of 25–150W RMS per channel.

What is the impedance of the C3-650?

The system has a 4-ohm nominal impedance.

What is the frequency response?

The specified frequency response is 48Hz–25kHz ±3dB.

Does the C3-650 include crossovers?

Yes. The system includes two external 2-way crossover networks with adjustable tweeter output and midrange presence controls.

Is the C3-650 sold as a pair?

Yes. The system includes two woofers, two tweeters and two crossover networks.