Selenium was founded in 1958, in Canoas town, Rio Grande do Sul state, Brazil, by brothers Victor, Henrique and Arno, and Carlos, who was later replaced by Gastão.

The technologic vanguard, which was the main feature of the company since now, brought daring and absolutely new products. Just two years after its incorporation, Selenium launched its first tweeter in the market, making the brand to become a synonym of this kind of transducer, because of its quality and technical performance. During the sixties, it has developed the first home speaker. Early in the seventies, this fact encouraged these four entrepreneurs to move the company to Nova Santa Rita town, in Rio Grande do Sul.

The eighties were decisive; during this period, Selenium has entered the automotive sound market, outstanding itself quite quickly, also starting to work in large environment sound arrangements, launching the professional product line. Currently, Selenium offers over 170 speakers and accessories, available from a distribution network with almost 10 thousand POS.

Besides the head office, Selenium brand is also present in São Paulo, with a modern structure prepared to serve one of the most demanding markets. The branch based in São Paulo capital has a distribution center, a modern showroom, an auditorium for conferences and courses and a product test lab. The national sales office is also based there.

Within the foreign market, Selenium has an integral subsidiary in the US - SELUSA - including sales and logistics office in Virginia , East Coast, and a distribution center in California , West Coast; a sales office in Madrid - Selenium Europe - and a strong operation in Asia - Selenium China . Products are also exported to 40 countries, equipping some of the best PAs, sport stadiums, theaters and movie theaters, entertainment and show establishments, as well as events in the whole world. The company is also a supplier to the most important carmakers, such as General Motors, Renault and Toyota .

All this work was recognized during three consecutive years by the PGQP ( Rio Grande do Sul state Program of Quality and Productivity), one of the most important quality awards in Brazil . In 1998, Selenium awarded the bronze trophy; in 1999, the Silver trophy and, in 2000, the Gold trophy.