KEF Blade Loudspeakers

£24,000.00£26,500.00 inc. VAT

Trade-in available

Blade is the world’s first Single Apparent Source loudspeaker, the production version of the cost-no-object Concept Blade Project revealed by KEF Audio at the 2009 Munich High End Show.

The top model in the Blade Series range, Blade has four 225mm/9in. bass drivers and a Uni-Q MF/HF array in a 1590mm/62.5in. high cabinet.


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Blade is the result of KEF’s best and brightest engineers being given free rein to create the ultimate loudspeaker without design or cost limitations. Blade is an attitude: It’s about exploring the art of the possible, without preconceptions, pushing the boundaries.

The Blade Concept took years to come to fruition but resulted in a loudspeaker that looks and sounds like no other, the next challenge was to turn it into a product that music lovers could own and enjoy.

Blade has a new architecture that achieves the ideal point source. Four bass drivers are arranged so that their combined acoustic centre occupies exactly the same point in space as that of the Uni-Q HF/MF array. This means that the sound escapes the cabinet as if it weren’t there and creates truly holographic imaging.

Just as KEF’s philosophy has always been to innovate in pursuit of the most accurate and realistic sound, Blade loudspeakers create a spectacularly warm and expansive sound that draws you in to the music. Totally natural and effortlessly accurate, they are as emotionally inspiring as a live performance.


The stunning Blade cabinets are available in a palette of seductive finishes. The standard Piano Black and Snow White, plus two special Kent Engineering & Foundry finishes (Frosted Blue and Copper Black) which celebrate KEF’s unrivalled heritage of continuous innovation for over fifty years.

Frosted Blue hints at the blue of the original KEF logo, whilst Copper Black combines Blade technology with an aesthetic that subtly evokes their rich pedigree.

There is also the option to match a custom colour or finish of your choice. This special service allows customers to make Blade truly their own, something totally unique.

Single apparent source

Sound from a single source is inherently clear. The treble and midrange drivers of Blade all share the same axis, and the four bass drivers are mounted such that their acoustic centres are in exactly the same spot. This single apparent source configuration is what makes Blade so incredibly coherent.

Discrete bass chambers

Blade’s bass drivers are mounted in discrete chambers. This increases the frequency of internal standing waves to way beyond the crossover point and reduces the need for damping materials which can impair bass quality. Nothing has been overlooked in the quest for ultimate clarity.

To avoid dissipating the energy of such potent bass drivers by exciting the cabinet, the large kinetic forces involved are cancelled out by mounting the drivers rigidly back-to-back. This highly effective configuration partly accounts for the astonishing low level resolution of Blade loudspeakers.


Two pairs of the finest audiophile WBT terminals for bi-wiring or bi-amping optimise the retrieval of low level detail from the signal in the speaker cable. Patented screw-in linking plugs offer a high spec and simplified alternative to wiring links.


The simple low order crossovers specified for Blade employ the best components available. These are carefully selected by a rigorous auditioning process so that every part of the signal path is fine-tuned for maximum clarity.

All the crossover components are individually wired by hand rather than mounted on a conventional printed circuit board. As well as being more environmentally friendly, this optimises both reliability and sound quality by assuring the cleanest possible signal transmission.

More information



Founded in 1961 by ex-BBC electrical engineer Raymond Cooke OBE, KEF was initially headquartered in a Nissen Hut on the premises of Kent Engineering & Foundry (from where the name KEF is derived), a metal-working company on the banks of the River Medway, near Maidstone in Kent.

From the very beginning, the pioneering inventiveness of KEF loudspeakers was undeniable and now for several decades, audiophiles around the world have revered KEF for their innovative, high-performance, beautiful loudspeakers.

KEF | Unilet Sound & Vision

Additional information

Weight 57.2 kg
Dimensions 54 × 36.3 × 159 cm

Custom Colour, Foundry Edition Copper Black, Foundry Edition Frosted Blue, Piano Black, Snow White

Purchase Options

Click & Collect, Trade-In Available


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