HiFi Speakers

Blade 1 Meta

The world’s first Single Apparent Source speaker


The world’s first Single Apparent Source speaker, now with 12th generation Uni-Q® with MAT™. A bespoke driver array engineered to deliver pristine performance, and capable of raising Blade to new heights of performance. Featuring four 225mm (9 in.) force-cancelling bass drivers, Blade One Meta is the top model in the Blade series.

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Engineered and handcrafted in UK"

Since 1961, we have been creating remarkable award-winning loudspeakers at our UK home in Maidstone, Kent. As our flagship HiFi speakers, Blade is still being designed, engineered, and handcrafted in Maidstone.


Uniquely KEF. Uniquely coherent.

At the heart of Blade lies Single Apparent Source technology; a unique technology that makes the Blade incredibly coherent, with noticeably more precise imaging. The latest version of Blade benefits from our latest acoustic innovation of the 12th generation Uni-Q® with Metamaterial Absorption Technology (MAT™).

Uncompromised Innovation

Obsessed with sound quality and committed to bringing a superior listening experience, our engineers created the revolutionary Concept Blade to showcase KEF’s technology leadership and powers of innovation with no preconceptions and restrictions. Since then, we keep pushing the boundaries of HiFi to create the loudspeaker with the best possible sound.

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The Details


Three-way bass reflex Single apparent source

Drive units

​​Uni-Q driver array: HF: 25 mm (1 in.) aluminium dome with MAT MF: 125 mm (5 in.) aluminium cone Bass units: LF: 4 x 225 mm (9 in.) aluminium cone, force cancelling

Frequency range free field (-6dB)

27Hz - 45kHz

Frequency range typical in room bass response (-6dB)


Frequency response (±3dB)

35Hz - 35kHz

Crossover frequency

350Hz, 2kHz

Amplifier requirements


Sensitivity (2.83V/1m)


Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)

<0.5% 40Hz - 100kHz <0.2% 200Hz - 2kHz <0.1% 2kHz - 20kHz

Maximum output (SPL) (peak sound pressure level at 1m with pink noise)



4 Ω (min. 2.8 Ω)


57.2 kg (126 lbs.)

Dimensions - with plinth (H x W x D)

1590 x 363 x 540 mm (62.5 x 14.3 x 21.2 in.)

Standard finishes

Piano Black/Copper, Piano Black/Grey, Frosted Blue/Blue, Frosted Blue/Bronze, Charcoal Grey/Red, Charcoal Grey/Bronze, Racing Red/Grey, Arctic White/Champagne


Information Sheet
White Paper

Please visit our Product Support page for more details.

KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.

Please visit our Product Support page for more details.

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