KOSS Corporation

The Koss Corporation is an American company headquartered in Milwaukee (Wisconsin ). The main business of the company is the development and production of headphones, which are sold under the brand name KOSS. The company is listed on the NASDAQ.

History of the company

The company was founded in 1953 by John C. Koss as rental of televisions. Five years later he developed together with his partner Martin Lange 's first stereo headphone in the world, the SP / 3 The model K 2 2 was introduced in 1971. It is the first headset with quadraphonic. For cult object, the model Porta Pro, which was first presented in 1984 and has since built nearly unchanged developed. In 1991, Michael J. Koss, the son of the founder, the management.