KEF

KEF is a British company specialising in the design and production of a range of high-end audio products, including HiFi speakers, subwoofers, architecture speakers, wireless speakers, and headphones. It was founded in Maidstone, Kent in 1961 by a BBC engineer Raymond Cooke OBE (1925–1995).

KEF is named after its original site, Kent Engineering and Foundry. Product development, acoustical technology research and the manufacture of signature products still occurs at the original Maidstone site in England. KEF's ethos is based on the continuing quest to find new and better ways of reproducing sound. Since the company's establishment, KEF has always driven innovation in sound. KEF was the first loudspeaker manufacturer in the world to implement the use of computers in loudspeaker design and measurement. KEF introduced the world's first coincident source speaker driver called Uni-Q in 1988 which has evolved to 12th generation since then, and it is still featured in almost all its speakers today. KEF is the first company to use metamaterial to absorb the unwanted sound from the rear of speaker driver in HiFi industry, the technology is called Metamaterial Absorption Technology (MAT).

KEF has received over 300 awards and holds more than 150 patents.