QUAD was founded by Peter Walker in the early 1940s after his move to Huntingdon, where he began developing high-quality audio equipment. Early amplifier designs quickly earned industry recognition, including use by the BBC, and established QUAD’s reputation for accurate and reliable sound reproduction.

Through the 1950s to 1980s, QUAD became renowned for innovation, most notably with the world’s first full-range electrostatic loudspeaker and the development of award-winning amplifier technologies. These products cemented the brand’s status among audiophiles and professionals worldwide.

Since becoming part of the International Audio Group in the late 1990s, QUAD has continued to evolve while respecting its heritage. Modern product ranges blend classic design principles with contemporary technology, maintaining the company’s long-standing goal of delivering the most faithful reproduction of music possible.