In the auditorium of Ziyang City, Sichuan Province, Beilarly ’s professional sound reinforcement system was adopted. Beverly ’s engineers used the linear array Q1 dual 6.5-inch full-frequency linear array according to the sound field characteristics of the lecture hall. The main sound reinforcement is matched with other audio equipment, so that the sound field of the entire auditorium is not only evenly covered, but also the sound quality is clear. , The tone is bright and prominent.