This standard defines the characteristics applicable to equipment for electroacoustic systems that do not appear in the group 08 brochure of the International Electrotechnical Vocabulary Electroacoustics, COVENIN 667-12 standard, and that will be used in the parts that will follow, indicated in part 1 - Generalities COVENIN 739-74.
COVENIN 740-1974 history
1974COVENIN 740-1974 Electroacoustic system equipment Part 2: Terminal definition