The Revox group was excluded and sold to private investors. The extensive reorganization culminated in the sale of the Studer group to Harman International Industries in March 1994. Motor-Columbus sold several subsidiaries and plants. In 1991, Motor-Columbus split the Studer-Revox Group into separate Studer, Revox and manufacturing-divisions. In 1990, Studer sold the Studer-Revox group to Motor-Columbus AG, including all subsidiary companies. In March 1951, Studer introduced the Revox brand name subsidiary. These products were in production until 1968. Willi Studer began to make high-tension oscilloscopes in 1948. Studer was a subsidiary of Harman International Industries.On February 9, 2021, Evertz Technologies Limited acquired the Studer audio brand from Harman. Manufacturing, marketing, and customer support were part of the Soundcraft facility in Potters Bar, England until Harman closed the Potters Bar facility in June 2016 and moved manufacturing and customer support to Hungary. Management, sales, engineering, R&D and customer service were based in Regensdorf, Switzerland, until owners Harman International Industries closed down the Swiss entity in March 2018 transferring the now decentralised operation to China, Hungary, and the US. In the 1990s the company moved into the manufacture of mixing consoles.
It initially became known in the 1950s for its professional tape recorders. The company was founded in Zürich, Switzerland, in 1948 by Willi Studer. Studer is a designer and manufacturer of audio equipment for recording studios and broadcasters. On the right a sound synthesizer, on the left a Studer C37 vacuum tube reel-to-reel tape recorder Israeli composer Josef Tal at the Electronic Music Studio in Jerusalem (c.