Features
| Warranty length | 5 Years |
|---|---|
| Brand | KEF Speakers |
Tech Specs
Drivers
- Design: Two-way bass reflex
- Driver array: Uni-Q drive units
- MF/LF: 5.25" aluminium cone
- HF: 1" vented aluminium dome
- HF: Metamaterial Absorption tech
Performance
- Crossover frequency: 2.1kHz
- Freq range (-6dB): 47Hz - 45kHz
- Typical bass response (-6dB) 26 Hz
- Freq response (±3dB) 79Hz - 28kHz
- THD (90dB, 1m): <0.4%, 175Hz - 20kHz
- THD (90dB, 1m): <0.1% 300Hz - 10kHz
Amplifier
- Maximum output: 106dB
- Amp power (recommend): 40-100W
- Nominal impedance: 8Ω (min. 3.5Ω)
- Sensitivity (2.83V/1m) 85dB
General
- Dimension (HWD): 302 x 200 x 280.5mm
- Weight: 7.8 kg (17.2 lbs)
Product Description
KEF LS50 Meta Speakers (Pair) are high precision bookshelf speakers built around KEF’s innovative acoustic technology to deliver an immersive and realistic sound from a compact, stylish design.
Metamaterial Absorption Technology
Metamaterial Absorption Technology (MAT) is a complex maze-like structure, where each of the channels efficiently absorbs a specific frequency. These channels absorb 99% of the unwanted sound that comes from the rear of the tweeter to reduce distortion and achieve a more natural performance.

Revolutionary sound absorption with MAT
Developed in partnership with Acoustic Metamaterials Group, Metamaterial Absorption Technology (MAT) is a breakthrough in loudspeaker design and demonstrates KEF’s commitment to developing new technologies for an improved listening experience. Metamaterials are specially developed to use existing materials so that they exhibit new desirable properties.
MAT is a complex maze-like structure, where each of the channels efficiently absorbs a specific frequency. These channels act as an acoustic black hole, absorbing 99% of the unwanted sound that comes from the rear of the tweeter eliminating resulting distortion and producing a purer, more natural acoustic performance.

12th Gen Uni-Q Technology
KEF’s Uni-Q point source configuration delivers detailed and precise audio that is evenly dispersed so you can experience the ‘sweet spot’ wherever you are in the room.
Using simulation, analysis tools and decades of accumulated knowledge, KEF engineers have developed a new iteration of this signature driver array with a new cone neck decoupler and motor system shaped to reduce HF distortion in the midrange. The result is lower coloration, less distortion and a more transparent sound. LS50 Meta surpasses the expectation of a bookshelf speaker this size to deliver deep, articulate bass in room-filling sound.

Enhancement from LS50 lineage
Using Computational Fluid Dynamics (CFD), the flare and profile of the flexible off-set port is calculated to delay turbulence and the flexible port walls prevent resonances from colouring the midrange for improved clarity with exceptional depth and detail. LS50 Meta’s extremely rigid cabinet is optimised for best performance with smooth curved surfaces that help disperse sound across the baffle with no interference.
The baffle is engineered from an Dough Moulding Compound (DMC). Inside the cabinet, cross bracing and Constrained Layer Damping (CLD) combine to negate internal vibrations so the LS50 Meta produces the lowest coloration of any speaker in its class.

Room Filling Sound
An improved cone neck decoupler and motor system has been developed to reduce high frequency distortion in the midrange, which ultimately results in lower colouration, less distortion and a more transparent sound. So regardless of the LS50’s bookshelf size, it delivers a deep, room-filling sound.

Solid Structure
The LS50 Meta Speakers have an extremely rigid cabinet that is optimised for performance, it’s smooth curved surfaces help disperse sound across the baffle with no interference. Inside the cabinet, cross bracing and Constrained Layer Damping technology is combined to tackle internal vibrations so the LS50 Meta Speakers produce low colouration.
Mount on Stands
KEF’s LS50 Meta Speakers can be easily mounted on stands. On the underside of each speaker, each corner has a threaded inset that allows the LS50 Meta to lock onto the top of the KEF S2 floorstand.






































































