Kenwood KFC-C6866S 6x8" 2-Way Coaxial Speakers

The Kenwood KFC-C6866S is a pair of 6 x 8-inch, 2-way coaxial car speakers designed to replace worn or basic factory door speakers. Its 4-ohm design supports use with compatible factory radios or aftermarket car audio systems. The speakers combine a woofer and centrally mounted tweeter in each unit for a compact full-range upgrade.

With 30 watts RMS and 250 watts peak input power per speaker, these speakers are suited to systems matched for modest power handling. Their 90 dB sensitivity and 40 Hz to 22 kHz frequency response support everyday music listening across bass, midrange, and treble ranges. They can be used as replacement speakers where a compatible 6 x 8-inch mounting location is available.

Each speaker uses a 6 x 8-inch polypropylene woofer cone with a cloth surround. The cone is paired with a 1-inch balanced-dome tweeter using a neodymium magnet. This coaxial arrangement places high-frequency reproduction directly over the woofer for a space-efficient installation.

Kenwood equips the KFC-C6866S with a ferrite woofer magnet and an enlarged magnetic circuit. The speaker also incorporates Kenwood's Sound Field Enhancer design. Together with the shallow tweeter height, these design elements support a practical fit for many vehicle speaker locations.

The KFC-C6866S works well as a straightforward front- or rear-speaker replacement in a compatible vehicle. Confirm the factory opening, cutout area, available mounting depth, and vehicle-specific wiring before purchase. An installer may need vehicle-specific mounting brackets, wiring harness adapters, or both depending on the application.

Key Features

• 6 x 8-Inch Coaxial Design: Combines woofer and tweeter in each speaker.
• 2-Way Speaker System: Separates low and high frequency reproduction.
• 30W RMS Power: Matches systems designed for moderate continuous power.
• 4-Ohm Impedance: Supports compatible factory and aftermarket audio systems.
• PP Woofer Cone: Uses a polypropylene cone with cloth surround.
• 1-Inch Balanced-Dome Tweeter: Adds dedicated high-frequency reproduction in a compact layout.

Design & Installation

The KFC-C6866S uses a silver polypropylene woofer diaphragm, cloth surround, ferrite woofer magnet, and neodymium tweeter magnet. Each speaker measures 203.7 mm wide by 145.0 mm high, with a 60 mm mounting depth. The tweeter rises 8 mm above the mounting surface.

Check for a 129 x 187 mm cutout area and at least 60 mm of mounting-depth clearance before installation. The package includes tapping screws and short speaker cords, but vehicle-specific adapters are not specified. For a clean installation, use the supplied hardware only where it suits the vehicle panel and secure all wiring connections before operating the system.