"Wilhelm Heckel GmbH is a manufacturer of woodwind instruments based in Wiesbaden, Germany. It is best known for its bassoons, which are considered some of the ...
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finest available.
The company was established in 1831 by the instrument maker Johann Adam Heckel. It remains a family-owned business.
Wilhelm Heckel is also known for its production of contrabassoons and heckelphones. It also formerly produced oboes, piccolo heckelphones, and heckel-clarinas." - (en.wikipedia.org 30.01.2020)