In 1948, . Willi Studer founded his business in Zürich with a staff of 3 people, producing special oscilloscopes for high-voltage labs. In the following year the company produced their first self-designed tape recorder called 'Dynavox' and by the early 1950s a new brand name for amateur products, Revox, was introduced. In 1951 the prototype of the first professional tape recorder, the Studer 27 was used by Swiss radio to record the "Internationale Musikfestwochen Luzern".

A new era of professional studio recorders began in 1955 with the development of the A37 and B37. In the following years the portable compact studio tape recorder B30 and the first mixing console studer 69 were introduced. The growth of the company continued, and in 1960 a new generation of studio recorders began with the C37, followed in 1963 by the first fully-transistorized professional tape recorder, the Studer A62 . In 1967 Abbey Road Studio used two four-track Studer J37's to record the world famous Beatles production "Sgt. Pepper". In the same year the famous and much-loved Revox A77 was introduced. This completely modular unit was built in more than 50 versions for applications such as broadcast, voice logging, education etc and was possibly one of the most successful tape recorders in the world with a production run of over 400,000 units sold worldwide continuing on to the final mk IV Dolby version sold sometime around 1976.

Although known primarily for its tape recording ventures, Studer/Revox did build a few separate Hi-Fi components, these usually matched whatever current range of tape recorders was being produced at the time.

By 1975 Studer employed 1,495 people and had purchased and built several production and distribution facilities worldwide. The culminating point in the company's development was the year 1986. The Studer Revox Group had 2000 employees in its production centers and subsidiaries in 10 countries. The annual turnover reached SFr. 220 million.

In 1990 Willi Studer sold the Studer Revox Group including all subsidiary companies to Motor-Columbus AG. He died on March 1st, 1996 after a brief illness at the age of 84.