Erhalte den wöchentlichen HiFi-Überblick — neue Geräte, Lesetipps und Angebote.
The Hitachi HD-66 is a model of headphones that was manufactured by Hitachi between 1973 and 1975 in Japan. It was offered at an approximate original price of 68 DM. Although specific technical specifications are not extensively documented, the HD-66 is part of a series that includes various audio e...