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Blade One Meta Charcoal Grey/Red

Name: Blade One Meta Charcoal Grey/Red
Brand: KEF
SKU: KEF-BLADE-ONE-META-CHARCOAL-GREY-RED

Model SP4044ZA02

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.

At a glance

All specifications

Sensitivity: 88 dB (2.83 V / 1 m)
Nominal impedance: 4 ohms
Frequency response: 35 Hz to 35 kHz
Dimensions (W × H × D): 363 × 1,590 × 540 mm
Weight: 57.2 kg
Driver size: 25 mm

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Overview

The world’s first Single Apparent Source speaker

EXPLORE THE BLADE SERIES

Features

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.
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™).
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.

Specifications

Sensitivity: 88 dB (2.83 V / 1 m); How loud it plays for a given signal. Higher sensitivity needs less amplifier power.
Nominal impedance: 4 ohms; The electrical load your amplifier drives. System Builder checks it against the amplifier you pick.
Frequency response: 35 Hz to 35 kHz; The range of pitches it reproduces, from deep bass to the top of the treble.
Dimensions (W × H × D): 363 × 1,590 × 540 mm; Width, height and depth, without cables.
Weight: 57.2 kg; Per unit, out of the box.
Driver size: 25 mm
Model code: KEF-BLADE-ONE-META-CHARCOAL-GREY-RED; Quote it when you ask a specialist.

Specifications

Design: 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): 20Hz
Frequency response (±3dB): 35Hz - 35kHz
Crossover frequency: 350Hz, 2kHz
Amplifier requirements: 50-400W
Sensitivity (2.83V/1m): 88dB
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): 117dB
Impedance: 4 Ω (min. 2.8 Ω)
Weight: 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