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Adyton was a Norwegian high-end audio equipment manufacturer founded in the late 1970s/early 1980s by Jan Eric van der Laak, a Civil Engineer from the Polytechnical Institute, University of Trondheim. The company evolved from van der Laak's earlier work with Sonotron amplifiers, particularly the PA 200 and PA 2000 models, with the latter being recognized as the 'World's best B-amplifier' at the Consumer Electronics Show in Chicago in 1977. Adyton specialized in manufacturing high-end MOSFET-based power amplifiers using single-ended topology (fully class A), produced in very limited series. The company was later run by Ola Abrahamsson under the name Abrahamsson Audio Laboratories and was based in Oslo. Notable products included the Aqua 1 (liquid-cooled), Opera Integrated Amplifier, Cordis 1.8 Signature power amplifier, and X-Series loudspeakers (X2 and X3 models). Manufacturing was located at Adytech, Horten Industripark, Horten, Norway. The company went out of business in 2002 and dissolved by 2003, following the death of founder Jan Eric van der Laak in 2005.