欧美是目前世界上经济和科学技术最为发达的地 区，他们的音响技术相对也很先进。近几年来，笔者曾 多次赴欧美考察和学习、通过与各个方面的音响工作 者广泛接触，对西方发达国家的音响技术现状有粗 浅的了解和认识。在欧美期间，本人曾参观、访问过很 多使用扩声系统的场所， Europe and the United States are the most developed regions in the world in terms of economy and science and technology, and their sound technology is relatively advanced. In recent years, I have repeatedly visited and studied in Europe and the United States. Through extensive contacts with sound workers in various fields, I have a superficial understanding and understanding of the status quo of sound technology in the developed western countries. During the visit to Europe and the United States, I visited and visited many places where the sound reinforcement system was used.