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Focal C 165 SF Slatefiber 6.5" 2-Way Component Speakers
The Focal C 165 SF is a premium 6.5-inch (165mm) 2-way component speaker system designed to deliver exceptional clarity, detailed midrange reproduction and dynamic performance for discerning car audio enthusiasts. Featuring Focal’s innovative Slatefiber cone technology, the C 165 SF combines rigidity, lightweight construction and excellent damping characteristics to produce a natural, balanced and highly detailed listening experience.
Manufactured in France, the Slatefiber cone uses recycled carbon fibres blended with thermoplastic polymer to achieve outstanding acoustic performance while maintaining low distortion and excellent responsiveness. Combined with Focal’s advanced motor design and butyl rubber surround, the speaker delivers accurate vocals, powerful midbass and impressive overall musicality.
With 80W RMS power handling, 160W maximum power, 89.4dB sensitivity and a wide frequency response extending from 60Hz to 21kHz, the C 165 SF offers impressive efficiency and performance across a broad range of music styles. The compact design allows seamless integration into factory and aftermarket installations while maintaining Focal’s renowned sound quality.
Key Features
- Premium 6.5" (165mm) 2-way component speaker system
- French-made Slatefiber cone technology
- Natural and highly detailed sound reproduction
- 80W RMS power handling
- 160W maximum program power
- 4 Ohm impedance
- Wide 60Hz – 21kHz frequency response
- 89.4dB sensitivity for efficient performance
- Ferrite motor structure
- Butyl rubber surround for durability and stability
- Excellent midbass impact and vocal clarity
- Ideal for factory audio upgrades and premium custom systems
Performance Benefits
- Exceptional clarity and natural tonal balance
- Detailed vocal reproduction and precise imaging
- Strong midbass response with low distortion
- High sensitivity for improved output from factory or aftermarket amplifiers
- Designed for accurate and engaging musical performance
Technical Specifications
| Speaker Type | 2-Way Component Speaker System |
| Nominal Diameter | 6.5" (165mm) |
| Cone Material | Slatefiber |
| Frequency Response | 60Hz – 21kHz |
| Sensitivity | 89.4dB (1W/1m) |
| Nominal Impedance | 4 Ohm |
| RMS Power Handling | 80W |
| Maximum Program Power | 160W |
| Resonance Frequency (Fs) | 67Hz |
| Total Q Factor (Qts) | 0.58 |
| Linear Excursion (Xmax) | ±4mm |
| Voice Coil Diameter | 25mm |
| Voice Coil Former | Kapton |
| Voice Coil Material | Copper |
| Magnet Material | Ferrite |
| Effective Cone Area (Sd) | 132cm² |
| Equivalent Compliance Volume (Vas) | 11.8L |
| Mounting Depth | 70mm |
| Cut-Out Diameter | 144mm |
| Overall Diameter | 165mm |
| Overall Depth | 81mm |
| Net Weight | 1.05kg |
Why Choose Focal Slatefiber?
Focal’s Slatefiber technology delivers a unique combination of rigidity, lightness and damping that allows the speaker to reproduce music with outstanding precision and realism. The result is cleaner vocals, tighter bass response and a more immersive listening experience compared to conventional speaker materials.
Designed and manufactured in France, the Focal C 165 SF is an excellent upgrade for drivers seeking premium sound quality, improved detail and long-term reliability from their vehicle’s audio system.
