Nagra

Beginning in 1997 a range of high-end equipment aimed at the audiophile community was introduced, and Nagra expanded the company's product lines into new markets.

Originally a product of the Kudelski Group, Nagra recorders are now developed, produced and sold by independently owned company Audio Technology Switzerland S.A., based in Romanel-sur-Lausanne.

The machines were initially designed by Polish inventor Stefan Kudelski,[1] and his company won numerous technical awards for their precision and reliability.

These machines are referred to as SN (for Série Noire) and production was originally ordered by President Kennedy for the United States Secret Service.

In response, Kudelski produced two digital recorders to compete: In 1997, Nagra launched the PL-P, a vacuum tube phono preamplifier, beginning a range of high-end audio equipment.