Blade One Meta
Floor-standing three-way bass-reflex loudspeaker and the top model in KEF's Blade series, built around a single apparent source driver layout with a 12th-generation Uni-Q array and four force-cancelling 225 mm bass drivers. Aimed at buyers of high-end two-channel hi-fi systems.
- Three-way bass reflex, single apparent source design
- 12th-gen Uni-Q array with Metamaterial Absorption Technology
- Four 225 mm aluminium force-cancelling bass drivers
- Frequency response 27 Hz - 45 kHz (free field, -6 dB)
- Sensitivity 88 dB, nominal impedance 4 Ω
- Eight finishes; custom Pantone enclosure colour available
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Blade One Meta is a three-way, bass-reflex floor-standing speaker that places its high, mid and low frequency sections so they behave as a single apparent source. The centre is a 12th-generation Uni-Q driver array with Metamaterial Absorption Technology (MAT), a maze-like structure that takes up around 99% of the unwanted sound radiated from the rear of the tweeter, reducing distortion.
Bass comes from four 225 mm aluminium-cone drivers mounted back to back so that their kinetic forces cancel. Each pair sits in its own chamber, which limits interference between the drivers and reduces the amount of damping needed. The crossover has been refined for the latest version, with crossover points at 350 Hz and 2 kHz.
The speaker is passive and is sold as a pair, so it needs a separate amplifier rated roughly 50-400 W. It is made in Maidstone, UK, comes in eight colour combinations, and a custom enclosure colour can be specified by Pantone reference. A choice of six standard Uni-Q cone colours is offered.
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Specifikationer
- Märke
- KEF
- Modell
- Blade One Meta
- Kategori
- Hi-Fi och hemmaljud › Högtalare
Audio
- Design
- Three-way bass reflex, single apparent source
- Frequency response (free field, -6dB)
- 27Hz - 45kHz
- Frequency response (-6dB)
- 35Hz - 35kHz
- Typical in-room bass response (-6dB)
- 20Hz
- Sensitivity (2.83V/1m)
- 88 dB
- Nominal impedance
- 4 Ω (min. 2.8 Ω)
- Maximum SPL measured at 1m
- 117 dB
- Crossover frequency
- 350Hz, 2kHz
Distortion
- THD (90dB, 1m) 40Hz - 100kHz
- <0.5%
- THD (90dB, 1m) 200Hz - 2kHz
- <0.2%
- THD (90dB, 1m) 2kHz - 20kHz
- <0.1%
Drivers
- HF driver
- 25 mm (1 in.) aluminium dome with MAT
- MF driver
- 125 mm (5 in.) aluminium cone
- LF drivers
- 4 x 225 mm (9 in.) aluminium cone, force cancelling
- Driver array
- 12th generation Uni-Q with MAT
Amplification
- Recommended amplifier power
- 50-400W
Physical
- Dimensions (H x W x D)
- 1590 mm x 363 mm x 540 mm (62.5 in. x 14.3 in. x 21.2 in.)
- Weight
- 57.2 kg (126 lbs.)
- 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
- Sold as
- Pair