- Speaker Type: 2-Way Passive Bookshelf / Standmount Speaker (Bass-Reflex)
- Uni-Q Coaxial Driver (12th Gen): 5.25" (130 mm) aluminium cone mid/bass driver
- Tweeter (High Frequencies): 1" (25 mm) vented aluminium dome with MAT technology
- Recommended Amplifier Power: 40 – 100W
- Frequency Response (±3dB): 79Hz – 28kHz
- Frequency Range (-6dB): 47Hz – 45kHz
- Sensitivity: 85 dB (2.83V / 1m)
- Maximum SPL: 106 dB
- Nominal Impedance: 8 Ohms (minimum 3.5 Ohms)
- Harmonic Distortion (90dB, 1m): < 0.4% (175Hz – 20kHz), < 0.1% (300Hz – 10kHz)
- Crossover Frequency: 2.1kHz
- Cabinet Type: Bass-Reflex with rear-tuned Flexible Port
- Connection Terminals: Gold-plated single binding posts
- Colour / Finish: Carbon Black (matte black finish)
- Dimensions (H x W x D): 302 x 200 x 280.5 mm (depth of 280.5 mm including terminals)
- Weight (per speaker): 7.8 kg
The KEF LS50 Meta are passive 2-way bookshelf/stand-mount speakers, designed for high-fidelity Hi-Fi stereo listening and demanding studio monitoring applications. They are an evolution of the iconic LS50 model, incorporating Metamaterial Absorption Technology (MAT) for the first time, which absorbs 99% of unwanted sound waves from the rear of the tweeter. They feature the 12th-generation 5.25-inch (130 mm) Uni-Q coaxial driver array with an integrated 1-inch (25 mm) aluminium tweeter. The cabinet is made from low-inertia composite material (DMC) with an internal Constrained Layer Damping brace, while the Bass-Reflex system features a flexible rear-tuned port (Off-Centre Flexible Port) to reduce midrange colouration.
Basic Features
- Speaker Type: 2-Way Passive Bookshelf / Standmount Speaker (Bass-Reflex)
- Uni-Q Coaxial Driver (12th Gen): 5.25" (130 mm) aluminium cone mid/bass driver
- Tweeter (High Frequencies): 1" (25 mm) vented aluminium dome with MAT technology
- Recommended Amplifier Power: 40 – 100W
- Frequency Response (±3dB): 79Hz – 28kHz
- Frequency Range (-6dB): 47Hz – 45kHz
- Sensitivity: 85 dB (2.83V / 1m)
- Maximum SPL: 106 dB
- Nominal Impedance: 8 Ohms (minimum 3.5 Ohms)
- Harmonic Distortion (90dB, 1m): < 0.4% (175Hz – 20kHz), < 0.1% (300Hz – 10kHz)
- Crossover Frequency: 2.1kHz
- Cabinet Type: Bass-Reflex with rear-tuned Flexible Port
- Connection Terminals: Gold-plated single binding posts
- Colour / Finish: Carbon Black (matte black finish)
- Dimensions (H x W x D): 302 x 200 x 280.5 mm (depth of 280.5 mm including terminals)
- Weight (per speaker): 7.8 kg
Metamaterial Absorption Technology (MAT)
The KEF LS50 Meta incorporates the revolutionary Metamaterial Absorption Technology (MAT). This complex labyrinth-like structure contains 30 channels, each of which effectively absorbs a specific frequency. Working together, the channels act as an acoustic “black hole,” absorbing 99% of unwanted sound energy from the rear of the tweeter (compared with around 60% in conventional designs), eliminating distortion and delivering cleaner, more natural sound.
12th Generation Uni-Q Coaxial Driver
The 12th-generation Uni-Q driver array places the 1-inch (25 mm) tweeter precisely at the acoustic centre of the 5.25-inch (130 mm) mid/bass cone. This Point Source design ensures smooth, even sound dispersion throughout the room, widening the sweet spot. The 12th generation features a redesigned tweeter damping system and an upgraded motor for lower distortion in the mid-frequency range.
Cabinet Design, Flexible Port & Inertial Damping
The LS50 Meta cabinet features a curved front baffle made from Dough Moulding Compound (DMC) to minimise wave diffraction. Inside, Constrained Layer Damping (CLD) technology is combined with cross-bracing to damp vibrations. The rear-facing Bass-Reflex port (Off-Centre Flexible Port) has flexible walls and an aerodynamic profile, preventing midrange resonances from colouring the sound.
- Power
- 100 W
- Freequency Range
- 47 - 45000 Hz
- Nominal Impendance
- 8 ohm
- Sensitivity
- 85 dB
- Driver Configuration
- 2 No of Drivers
- Placing
- Bookself
- Bass Driver
- 4 "
- Dolby Atmos
- No
- Quantity
- Pair
- Colour
- Black
- Height
- 30.2 cm
- Width
- 20 cm
- Length
- 28.5 cm
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.