Beilarly professional audio power: "Celebrate the 40th Anniversary of Shenzhen City" Cantonese Opera Cantonese Masters Evening. The Propaganda Department of the Shenzhen Municipal Committee of the Communist Party of China and the Shenzhen Municipal Bureau of Culture, Radio, Television, Tourism and Sports jointly planned a series of literary and artistic performances to celebrate the 40th anniversary of the establishment of Shenzhen City. Held in the hall. In order to meet the audio-visual needs of every listener, Beilarly engineers used 16 dual 10-inch two-way line arrays, 4 dual 15-inch subwoofers and 8 back listening speakers on the stage.