HSW-Tonstudio Wetzlar

German recording studio in Wetzlar, founded by Hermann Schulte, the co-founder of the Christian broadcast and media society Evangeliums-Rundfunk (ERF). The HSW Studio (short for: Hermann Schulte Wetzlar) was the first recording entity in connection to the Christian releases of Schulte and operated from 1961 until the end of the 1970's, when it was replaced by ERF-Tonstudios.