To mark the occasion of its 60th birthday, the well known speaker manufacturer Elipson is honoring the landmark models that have shaped its history. The first speaker to gain fame was the famous bs 50, an acronym for its full name Staff Ball, 50 cm diameter.
Designed in 1953, the bs 50 was created for the first sound and lightshows at the Château de Chambord in France. Its ear allowed for precise sound diffusion.