新疆广播电视厅文艺用品商行与深圳文化企业发展公司于90年11月10日至14日在乌鲁木齐市南门区体育馆联合举办了《美国声塔专业音响技术讲座》会。会上展览了美国AES会员一声塔公司(SOUNDT-ECH CO.)的电声产品以及国产与进口的各类管弦乐器、电子乐器及电声乐队演出效果器等。声塔公司的美籍华裔张海明博士讲解PA了系统、舞厅音响、宾馆 Xinjiang Radio and Television Department Arts and Crafts Firm and Shenzhen Cultural Enterprise Development Co., Ltd. jointly organized the “U.S. Acoustic Tower Professional Audio Technology Seminar” at the Nanmen District Gymnasium, Urumqi from November 10 to 14, 1990. At the conference, electro-acoustic products of the US AES member SOUNDT-ECH CO., as well as domestic and imported orchestral instruments, electronic musical instruments, and electro-acoustic bands performance effects were displayed. Dr. Zhang Haiming, a Chinese-American of Sonic Towers explained the PA system, dance hall audio, and guesthouse