Description
Introducing the all new Focal SUB 20 SF 8″ Slatefiber Subwoofer.
The Focal SUB 20 SF is a premium 8-inch (200 mm) passive car subwoofer designed for drivers who want stronger, more controlled bass performance without sacrificing valuable vehicle space. As part of Focal’s acclaimed Slatefiber range, this compact subwoofer delivers impressive low-frequency output while maintaining the clarity, precision, and musical balance Focal is known for.
Whether you are upgrading a factory audio system or building a high-performance custom setup, the SUB 20 SF provides deep, dynamic bass in a practical and installation-friendly design.

Exclusive Slatefiber Cone Technology
At the heart of the SUB 20 SF is Focal’s exclusive Slatefiber cone, engineered using recycled carbon fibres combined with thermoplastic polymer materials.
As a result, the cone delivers:
- Excellent rigidity for accurate bass reproduction
- Fast transient response for tighter low frequencies
- Controlled damping to reduce unwanted distortion
This advanced construction allows the subwoofer to produce bass that feels deep, punchy, and controlled rather than loose or overpowering.
In addition, the Slatefiber technology enhances musical detail across a wide range of music genres, creating a more immersive listening experience.

Compact Bass with Genuine Focal Sound
If you want a compact subwoofer that delivers powerful, controlled bass without compromising sound quality, the Focal SUB 20 SF Slatefiber Subwoofer is an outstanding choice.
Ultimately, it combines premium materials, advanced engineering, and impressive low-frequency performance to elevate any in-car audio system.
Flexible System Integration
Focal designed the SUB 20 SF to integrate easily into a wide range of upgraded car audio systems.
Specifications include:
- 200W RMS power handling
- 400W maximum power
- 4Ω impedance
- 87 dB sensitivity
- 90 mm mounting depth
As a result, the Subwoofer works well in compact custom Enclosures and applications where larger Subwoofers may not be practical.
Accessories
- Grilles: On the product
- Supplied with screws and Mounting Brackets: Yes











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