The Kunming Wubaili Music Festival was held in Gudian Boutique Wetland Park, Huanhu South Road, Jinning District, Kunming City, Yunnan Province. It is the most anticipated large-scale music festival in early summer. Wubaili is of course not to be expected. The lineup is very strong. According to the characteristics of the music festival venue and sound field, engineers of Beilarly Professional Audio Equipment Factory used Q4 line arrays on the on-site sound reinforcement system, paired with dual 18-inch subwoofers and listening speakers. The sound field of the whole music festival concert venue is not only uniformly covered, but also the sound quality is clear, making the mid-range round and full, the high frequency is delicate, and the low frequency dive is full of flexibility; to ensure that every corner of the concert can enjoy a perfect music experience .