The People ’s Government of Nanchang City, Jiangxi Province is the executive body of the People ’s Congress of Nanchang City and the national administrative organ of the city. The report hall is an important occasion for holding government meetings and reports. Therefore, the city government has very high requirements for the sound system of the report hall. After careful selection on professional equipment audio, finally choose Beilarly professional audio equipment. According to the size of the lecture hall and the functional requirements of the Beilarly program, the Q5 line array audio is selected, so that the sound field of the entire lecture hall is not only uniformly covered, but also the sound quality is clear and high fidelity, making the mid-range round and full, high The frequency is delicate and the low frequency dive is full of flexibility, ensuring that the sound of each corner of the lecture hall is thick and the tone is bright and prominent.