KEF LS50 Meta Passive Bookshelf SpeakersThe World's First Speakers with Metamaterial Great loudspeakers disappear, leaving just the music. LS50 Meta is such a loudspeaker. The incredibly immersive sound means you lose yourself in your favourite music. Savouring every nuance as layer upon layer of instrumentation is delivered with exceptional acoustic accuracy anywhere in the room. Metamaterial Absorption Technology A truly revolutionary tool in the KEF acoustic armoury, Metamaterial