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The story
Founded by Johannes Klais in 1882.1
Johannes Klais, a skilled organ builder trained in Alsace, Switzerland, and Southern Germany, established his own workshop in Bonn in 1882. His craftsmanship was deeply rooted in traditional methods, particularly the use of slider windchests. However, even before the turn of the century, he demonstrated innovation by creating high-pressure stops with dual mouths on pneumatic cone valve chests. In 1906, alongside his son Hans, he introduced electric action to organ building.
Hans Klais succeeded his father in 1925. During his leadership, the company embraced modern influences, particularly in facade design, and made advancements in ergonomic console designs.
In 1965, Hans Gerd Klais, the founder's grandson, took over the business, followed by Philipp Klais, the founder's great-grandson, who became the fourth-generation manager of Orgelbau Klais.
The company gained international recognition for its restoration of the historic Bamboo Organ at St. Joseph's Parish in Las Piñas City, Philippines. The organ was transported to Germany in 1973, meticulously restored in 1974, and returned to the church in 1975. Beyond restoration, the company trained former church choirboys in organ building, who later established a local organ building and restoration workshop.
From Wikipedia’s article on Klais Orgelbau, shared under CC BY-SA 4.0.3