Welcome To PSI Audio

Relec SA is the company that owns and manufactures PSI Audio. Our workshops and offices are ideally located in Yverdon-les-Bains in Switzerland in the middle of a fast developing technology park.

Relec SA is specialized in designing and manufacturing very high quality loudspeakers. A part from PSI Audio we also manufacture Rowen www.rowen.ch as well as some custom built speakers. In the past we developed and produced a range of studio monitors for Studer www.studer.ch

Our 1000 square meters premises feature all the workshops necessary for the production of speakers: mechanics, woodwork, winding, cabling, PCB laboratory, PCB mounting, magnetization, assembly workshops, quality check stages, 150 cubic meter anechoic chamber, packaging, storage, etc.

Our unique and multi-disciplinary expertise in acoustics, vibratory mechanics, electronics and instrumentation has also allowed us to develop devices for other industries: seismographs that equip many bridges and dams in Europe, high precision amplifier for precision mechanical devices, measurement instruments for the watch industry, acoustic tables for the medical industry, etc.

Who Is PSI Audio

Our mission is to transform an electric signal into an acoustic signal.


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Our Skills

PSI Audio loudspeakers manufacturing 90
Other loudspeakers development and manufacturing 35
Acoustic Research 75
Other developments for the audio branch 10

Meet Our Team

Roger Roschnik
Roger RoschnikCEO
Roger is a long term audio passionate with a degree in mechanical engineering as well as a MBA. He started his career in engineering consultancy before spending 12 years in a leading multinational company. Following his entrepreneurial spirit, he then started several industrial companies in Switzerland and abroad as well as working as and independent consultant in various fields. Roger joined Relec SA in 2014 when Alain Roux started stepping down.
Apart from music and audio, Roger enjoys outdoor sports such as skiing, mountaineering and kite-surfing.
Christian Martin
Christian MartinTechnical Director
Christian devoted his entire professional and leisure life to the field of audio. He joined Relec SA in 1991 after graduating as an electronics engineer. He is the man behind all the unique and innovative electronic developments in Relec SA for over two decades. In parallel Christian also started a service company for PA Audio.
Christian is very active in his municipality, and when he has time, enjoys travelling and climbing.
Fabrice Del-Prete
Fabrice Del-PreteSales & Marketing Manager
Lifetime passionate about sound and image, Fabrice joined Relec SA in 2008 after spending 15 years developing sales of audio equipment in large international companies. Fabrice also started his own audio business, has a professional studio and is also a successful professional photographer.
Michel Coudert
Michel CoudertProduction Manager
Michel joined Relec in 2007 after spending 20 years technical positions with increasing responsibilities in multinational companies. Michel enjoys tennis and manages a large tennis club in Yverdon.
Nicolas Roux
Nicolas RouxQuality Assurance
Nicolas is an electronics engineer also passionate about audio technology. He joined Relec in 2012 but his knowledge of the company and industry go back a lot further as he is Alain’s son.
Nicolas enjoys reading, learning and experimenting further in numerous technical fields.
Sylvie Guignet
Sylvie GuignetAdministration
Sylvie makes sure everything is running smoothly in our offices and in our books. She has been with Relec SA since 2012. In her freetime she enjoys all sorts of activities with her family and friends.
Didier Favre
Didier FavreWood and Metal Workshops
Didier is a carpenter by trade and joined Relec in 1993. Needless to say he has been optimising not only the production but also the design of all our products for over 20 years now.
Didier competes at international level in windsurfing and enjoys ski mountaineering when the lake is too cold to windsurf (i.e. below freezing).
Alain Roux
Alain RouxFounder
Alain Roux the founder of Relec SA has officially retired but we are lucky to still work with him and access his rich knowledge and experience accumulated over a lifetime devoted to building the best possible speakers.
Apart from loudspeakers Alain also enjoys classic cars and growing his own wine.
Nicolas Bulostin
Nicolas BulostinCreative Media Consultant (Le Third Floor)
Nicolas started his career as a musician and rapidly got interested in music production. He then started several music labels and music publishing organisations. More recently he turned to creative media consultancy in the music industry. Nicolas joins PSI Audio’s team in 2016.

Our Happy Clients