Descriptions

About: Focal C 165 SF 6-1/2" 80W RMS 2-Way Coaxial Car Speakers

The Slatefiber C 165 SF model is a versatile coaxial kit delivering clear, powerful, and balanced sound reproduction. Its Slatefiber cone, made in France, combined with the aluminium/magnesium inverted dome tweeter, ensures detailed, uniform listening to enhance every drive.

The Slatefiber line brings together six audio kits designed to offer a complete, high performance solution for in car listening. At its core is the Slatefiber cone, an exclusive Focal technology made from recycled carbon fibres, delivering rigidity, dynamism, and neutrality for precise, vibrant sound. Accessible yet powerful, the range lets every driver enjoy the true Focal acoustic signature.

Slatefiber Technology 

Made from recycled carbon fibres, the Slatefiber cone offers ideal rigidity and damping. The result: rich, precise, and stable sound, even at high power, with the unmistakable Focal character.

Al/Mg Tweeter: Precision and Brilliance 

The aluminium/magnesium inverted dome tweeter provides clarity, finesse, and wide dispersion. Multiple mounting options - surface, factory location, or angled support - allow seamless integration.

Durability & Premium Design

Featuring an aluminium rotor design chassis, robust butyl surround, and premium materials, the C 165 SF is built to last while remaining easy to install across a wide range of vehicles.

Features: 

• Exclusive Slatefiber technology – Cone made in France in Focal’s workshops
• High power handling, for long-lasting performances, even at high volume
• Optimised efficiency to limit amplification requirements
• Solid design and rigorously selected materials for long-term reliability
• Grilles included 

Specifications: 

• Woofer: 6-1/2" (165mm)
• Nominal Power: 80W RMS
• Maximum Power: 160W
• Sensitivity: 91dB
• Nom. Impedance: 4Ω
• Cone: Slatefiber
• Surround: Butyl
• Magnet: Ferrite
• VC Diameter: 1"  (25 mm)
• Former: Kapton
• Layers: 2
• Wire: Copper
• Depth: 2-3/4"(70mm)
• Net Weight: 2.31 lbs (1050g)
• Frequency Response: 60Hz-21kHz 

Thiele-Small Parameters: 

• Rdc: 2.8Ω
• Resonance Frequency (Fs): 67Hz
• Mechanical Mass (Mms): 11.85g
• Mechanical Compliance (Cms): 0.42mm/N
• Equivalent Volume (Vas): 11.78l
• Total Factor (Qts): 0.583
• Electrical Factor (Qes): 0.621
• Mechanical Factor (Qms): 9.42
• Bxl: 4.8N/A
• Cone Area (Sd): 132cm
• Xmax: 4mm