About the reasonable configuration of professional stage sound system，affecting the sound quality of stage sound generally has the following aspects: 

(1) Design of audio sound expansion system;

(2) Equipment layout and construction technology; 

(3) System debugging and measurement; 

(4) Sound source, program source and on-site sound engineer tuning management level. The first three problems are related to sound engineering design, equipment selection, site construction, commissioning and measurement, and can be classified in the category of objective factors; the latter one is classified in the category of subjective factors. Various factors affecting sound quality in the sound expansion system are analyzed and discussed one by one. In the design of sound expansion system, equipment selection is the first very important link, and the quality of equipment directly affects the quality of sound replay. 

Guangdong Wanchang Technology Industrial Co., Ltd. has 18 years of industry experience and perfect service system, from product consulting, engineering design, guidance and debugging, user training, maintenance, system upgrading and other links to form a professional service mode. Its independent brand JSL Jazz Dragon Sound has won the top ten professional sound expansion system (national) brands for 14 consecutive years. In the future, it will continue to focus on quality and innovation, inherit and carry forward the brand concept of "listen to the good voice, gather positive energy", and strive to create infinite space in the sound world.