Ken Ishiwata is probably one of the most influential personalities in our industry. His engineering talent allowed him to design many great devices and modify Marantz's standard equipment. Amplifiers and CD players signed with his initials are very sought after, and regular models only go into production after gaining his approval. Born in Japan in 1947, Ken Ishiwata is also one of passionate music lovers who had a chance to experience almost every major technology and music format, from tube amps to streamers, from mono recordings to hi-res music files. Privately, he's a very original person who likes to share his passion with other music lovers.