Home / Standards / GB/T 33769-2017 GB/T 33769-2017 Active Sound system equipment—Electroacoustical transducers—Measurement of large signal parameters 声系统设备 电声换能器 大信号参数的测量 Standard Type GBT ICS 33.160.50 CCS M70 Status 现行 Issue Date 2017-05-31 Implementation 2017-12-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A