Küch was born on March 18, 1837 in Höhnebach. He seems to have work in every possible theatrical jobs. He made his debut in 1865 in Gera. During the next 25 years, Küch had ups and downs in 21 cities. He was the first Lohengrin in Chemnitz (1870), Stolzing in Düsseldorf (1878) and Magdeburg (1880). He was longer than one year in Kassel, Göttingen, and Magdeburg. He also sang in Freiburg, Altenburg and then Ulm in 1889. In 1890, Küch was the director, producer, singer of an opera troupe from Meissen in Neisse. In 1890, he taught singing in Friederichroda. Küch died on December 6, 1899 in Halberstadt.
Reference: Einhard Luther, So viel der Helden, Biographie eines stimmfaches Teil 3, Wagnertenöre der Kaiserzeit, (1871-1918)