Hunan Safety Technology Vocational College (Changsha Coal Mine Safety Technology Training Center) Stadium Sound Reinforcement System

Hunan Vocational College of Safety Technology (Changsha Coal Mine Safety Technology Training Center, hereinafter referred to as the "School") is located in Changsha, a historical and cultural city in China and the capital of Hunan Province. The school is located to the east of the national level Changsha Economic and Technological Development Zone, overlooking Hunan Radio and Television Center and Changsha Window of the World to the south, and overlooking the beauty of Yuelu and the Xiang River to the west; Located on Wanjiali North Road, a major transportation artery in Changsha, and the northern section of Changsha Metro Line 5, it is one of the core areas of Changsha's "Vocational Education University City".




The sound source design is due to the school playground hosting sports events, cultural performances, large-scale gatherings, and other activities; So design and install computers, smart music playback consoles, wireless microphones, wired microphones, CD players, and other audio sources for the school playground sound source.

The main control part is designed with processing equipment such as a mixing console, effects unit, equalizer, digital audio processor, feedback suppressor, etc., which improve sound quality, produce sound effects, eliminate feedback, etc.

The design of the audio system takes into account the playground area, and users require a uniform sound field, mainly used for playground sound reinforcement; Therefore, we design and install Theater Voice VQ series dual 10 inch linear array speakers as the main amplifier and dual 8-inch linear array speakers as supplementary speakers for users. Based on the size of the playground, we have designed 2 strings of 4 double 10 linear arrays for users, with 2 double 18 inch subwoofers as the main speakers. Two sets of double 8-inch linear array speakers are placed on each side of the podium to assist in amplifying and covering the stands on both sides; Arrange two sets of double 10 inch linear array speakers on both sides of the stands, in conjunction with the main expansion linear array speakers, to cover the entire playground.



◆ Ensure that the sound reinforcement system of the sports stadium has high language clarity and can provide sufficient sound pressure for a long time.
◆ There are no obvious echo, vibration echo, sound focusing or other sound quality defects in various positions of the venue;
◆ The system does not have any obvious sound feedback issues;
◆ The sound system meets the uniform sound amplification of the entire audience stand area and the venue;
◆ Within the sound coverage area, the sound field distribution is uniform and the frequency response characteristics are consistent;
◆ The speakers of the sound amplification system are arranged in a centralized manner;
◆ The sound amplification system adopts digital control mode and the equipment is highly integrated;
◆ The audio system is equipped with multiple protection measures and audio output interfaces;
◆ The audio system equipment configuration meets multifunctional requirements, including language amplification for various sports competitions
◆ The equipment of the audio system has various noise indicators below the specified limits during normal use;
◆ The appearance and installation position of the speaker do not affect the overall style and safety of the venue.