American audio engineer, educator and consultant, born in 1928 in New York City, died 2 July 2012.

After obtaining a BSEE from Columbia University in1956, Grundy spent a year working at the Columbia Acoustic Research Lab. He then travelled through Europe, where he designed and constructed recording and mixing studio and working as a recording engineer (mostly on the classical repertoire). In Switzerland, he was chief engineer at Tono A.G. (Zürich) and Phonotek A.G. (Geneva). After returning to the US in 1960, Grundy founded International Electroacoustics, a company for designing recording and mastering facilities. With IE, he introduced a variety of European equipment to the American market, including the Neumann stereo disc-cutting systems. In 1969 he founded the Institute of Audio Research, the first school in the country dedicated to the subject. After retiring from the IAR, Grundy founded International Cutterhead Services, a company for restoring and installing disc mastering systems, of which he had collected several during the period of transition from vinyl to CD.