"Committed to ‘Sound before all else’, KEF is proud to announce its ground-breaking use of Metamaterial Absorption Technology (MAT) to transform loudspeaker design. A joint development initiative with the Acoustic Metamaterials Group, MAT acts as an acoustic black hole with the super capacity to absorb 99% of all unwanted sound radiating from the rear of the driver, reducing distortion and delivering an unrivalled purity of sound.The resulting acoustic quality is incomparable. The difference is audible."
Metamaterials are specially developed structures that use existing materials in such a way that they exhibit new properties. MAT’s tuned channels absorb 99% of the unwanted sound from the rear of driver, compared to around 60% absorption from loudspeakers using different approaches.