Guizhou Water Park has a large-scale comprehensive amusement project integrating water-based parent-child experience, fun adventures, stimulating slides, spa and beauty, shopping plazas, cultural performances, eco-tourism, accommodation and leisure, and gourmet dining. It is a large-scale water theme park integrating thrilling, exciting, dynamic, entertainment and leisure. After careful selection of professional equipment audio, Beilarly professional audio equipment was finally selected. According to the architectural characteristics of the water park and the sound requirements, Beilarly audio engineers used Q4 line array with STX-815M back listening and other products. The sound field of the whole water park is evenly covered, and the sound quality is clear, making the mid-range round and full, the high frequency is delicate, the low-frequency dive is full of flexibility, the real sound is thick and the tone is bright and prominent.