In order to strengthen the school's hardware construction, Shenzhen Longgang Vocational and Technical School adopts the Beilarly line array sound system according to the needs of daily work to provide a reliable professional sound reinforcement system for the school auditorium. The school requires sound reinforcement equipment to be reasonably arranged It should be concise and generous, with clear and bright speech and high recognizability, suitable for various performances and conference reports. Beilarly engineers designed a complete high-standard sound reinforcement system according to the needs of the school, which met the stage performances and conference reports of various cultural and sports activities held by the school. The sound field coverage has good consistency, the sound field is evenly distributed, and the system distortion is low, which meets the requirements of cultural performances for high sound quality. At the same time, the sound system voice is clear and the tone is transparent, which is unanimously praised by the school leaders. This set of linear array audio system can also be used in stadium sound reinforcement, outdoor sound reinforcement, conference report hall, multi-function hall and other places.