ATC is a British company formed in 1974 by Billy Woodman. Since its inception, ATC has kept steadfastly to its founders aims of building loudspeakers and audio electronics which employ the most effective of modern engineering principles.That has meant far more than keeping up with or even ahead of the competition. It has meant striving to make loudspeakers as near perfection in their performance as it is possible to make them. All ATC products are built to provide nothing less than the best sound reproduction money can buy and to meet the challenge of the latest digital recording technology.

1976 saw the first production of the ground-breaking SM 75-150s that revolutionised studio monitoring and has since become recognised as the ultimate mid-range transducer for both domestic and professional applications. Having established a market for reference quality precision-made monitors, a succession of smaller ATC speakers then evolved ranging from SCM7s through 10s and 20s. Available in both active and passive versions, they offered elite ATC performance and reliability to many new customers. In 1996 Woodman and his research team developed an innovative new driver topology designed to eliminate the effects of magnetic hysteresis as a significant source of distortion in loudspeaker drive units. Arguably the most significant development in transducer design in the last 15 years, SL technology epitomises ATC’s commitment to sound quality. 

Billy is passed away in 2022, and the Woodman family remains at the helm of ATC where the founder’s spirit lives on.