Human Base bass guitars are made by Siegfried Jäger in Waldems, Germany since the early 1990s. Jäger meticulously handcrafts each instrument and players can choose from a wide range of features and options to completely customized their bass. Siggi Jaeger is known for his use of figured maple and his fretless basses are particularly well thought of.

Source: Human Base catalog 1991

Source: Human Base website