Dolby

Dolby Laboratories transformed professional and consumer audio with its pioneering noise reduction and surround sound technologies. Founded in London in 1965 by Ray Dolby, the company’s first breakthrough came with the Dolby A301 and Type A Noise Reduction System in 1966, which revolutionised analogue recording by virtually eliminating tape hiss without compromising fidelity. This innovation quickly became standard in studios worldwide and laid the foundation for later systems such as Dolby SR, Dolby B, and Dolby C, as well as the company’s future dominance in cinema and digital audio formats. From the golden age of tape to today’s immersive sound experiences, Dolby has remained synonymous with precision, clarity, and innovation in sound.

Dolby Model 365
Dolby Model 363
Decades
Made In U.K.
Released in 1966 /
The Dolby A301 was the first professional Dolby noise reduction system and a landmark in recording technology. Using a four-band compander design, it provided 10–15 dB of noise reduction across the audible range without affecting tonal balance or dynamics. Its precision engineering, modular construction, and stable performance made it indispensable in top studios and broadcast facilities from the mid-1960s onward, paving the way for the later Dolby Type A and SR systems that defined professional recording for the next three decades.
Made In U.K.
Released in 1986 /
The Dolby Model 365 is a two channel professional noise reduction processor designed for use across recording, broadcast, film and archival work. It supports either Dolby A type or Dolby SR modules and provides transparent noise reduction with wide dynamic range, precise calibration tools and flexible operation in both record and playback chains.
Made In U.K.
Released in 1987 /
The Dolby Model 363 is a two channel professional noise reduction unit offering Dolby A type or Dolby SR processing through interchangeable modules, with built in calibration, transformerless balanced I/O, Auto Compare, and independent or stereo linked operation in a compact 1U design.