Everything you need to know about the product
The Focal P 20 FSE is an ultra-compact 8-inch slim subwoofer that delivers impressive 400-watt peak power and natural, distortion-free bass. Designed and made in France by Focal's expert acoustic engineers, this subwoofer incorporates premium materials and cutting-edge technology to provide a rich, precise low-frequency response — even in the tightest of spaces.
Its unique flax cone, made from a lightweight flax fibre core sandwiched between layers of glass fibre, is the secret to the P 20 FSE's natural sound quality. This innovative material offers the perfect balance of rigidity and damping, ensuring accurate, punchy bass without unwanted distortion.
The integrated Dual Magnet motor keeps the overall size compact while delivering powerful output. The robust shaped rubber surround allows for greater excursion, extending frequency response for deeper bass. A 38mm voice coil wound on a glass fibre former ensures better thermal management, reducing the risk of overheating during extended use.
Thanks to its shallow depth and sealed box compatibility (6–9L), the P 20 FSE is a perfect fit for vehicles with limited space — whether that's behind the seats, in a side compartment, or anywhere a full-depth subwoofer simply won't fit.
For car audio enthusiasts seeking tight, clean bass in a space-limited install, the Focal P 20 FSE brings audiophile-grade sound to your vehicle. Whether you're upgrading your OEM system or building a custom setup, this shallow-mount subwoofer delivers a clear bass experience with minimal space requirements.
Discover what makes our products industry leaders.
Ultra-slim profile allows installation behind seats or in side compartments where a standard subwoofer would not fit.
Natural flax fibre core between glass fibre layers delivers accurate, punchy bass with minimal distortion.
Compact yet powerful motor structure delivers up to 400W peak output without increasing the overall footprint.
Improves thermal management and reduces the risk of overheating during extended listening sessions.
Allows greater cone excursion for deeper, more extended bass response from a compact driver.
Optimised for small sealed enclosures, making it straightforward to package in space-limited vehicles.
Secure, simple wiring connections for fast and reliable installation.
Designed and manufactured in Focal's specialist acoustic workshops in France.
A deep dive into our industry-leading technology and high-performance standards.
The P 20 FSE is a shallow (slim) mount version designed for smaller sealed enclosures (6–9L), making it ideal for vehicles where mounting depth is restricted. The P 20 FE has a deeper profile and suits larger enclosures up to 20L.
It is optimised for sealed enclosures between 6 and 9 litres. A correctly sized sealed box ensures the best bass performance from this driver.
Yes — the P 20 FSE's slim profile is specifically designed for behind-seat, under-seat, and side-compartment installations where mounting depth is restricted. Contact us to confirm fitment for your specific vehicle.
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