Everything you need to know about the product
Don't let the small size fool you — the Focal SUB 5 KM delivers powerful, accurate bass in a discreet, space-saving design. Engineered with advanced K2 Power M speaker technology, this 5-inch subwoofer reproduces low frequencies between 35 Hz and 250 Hz with exceptional clarity, dynamic punch, and precision.
The signature K2 aramid fibre sandwich cone features Focal's exclusive "M"-profile geometry, which enhances sound dispersion, reduces mounting depth, and improves overall frequency response. Whether you're upgrading a compact cabin or adding tight bass to a full-system build, the FOCAL SUB 5 KM brings premium performance without sacrificing space.
It's the perfect solution for vehicles where every millimetre counts — and every decibel matters.
An engraved serial number, specially profiled aluminium frame, and ferrite motor: every element has been thoughtfully designed to combine authenticity, design, integration, and performance.
Discover what makes our products industry leaders.
Provides bass reinforcement in small spaces where a standard subwoofer won't fit.
The exclusive "M"-profile geometry enhances sound dispersion, reduces mounting depth, and improves overall frequency response.
High power handling delivers impactful bass with precision and clarity.
Discreet yet visually striking design with a certificate of authenticity.
Provides rigidity and efficient heat dissipation for reliable long-term performance.
Delivers reliable power and in-depth bass gain in a compact form factor.
Designed and manufactured in Focal's French workshops.
A deep dive into our industry-leading technology and high-performance standards.
The SUB 5 KM reproduces frequencies between 35 Hz and 250 Hz.
The exclusive 'M'-profile geometry of the aramid fibre cone enhances sound dispersion, reduces mounting depth, and improves overall frequency response compared to a standard cone profile.
Yes — it is specifically engineered for compact installations where space is limited, making it ideal for small vehicles or adding discreet bass reinforcement to any build.
Yes — it features an engraved serial number as a certificate of authenticity, confirming it is a genuine Focal product.
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