About the stage audio equipment debugging skills: adjust the equalizer, the tone table master output push pull down, play a very familiar with singing CD record, at ordinary times because of the music of high, medium and low frequency balance and the balance of music and song, has a subjective standard when listening through the headphone, through the expansion system to replay the music, or play audio test CD record. 

1. Room balance adjustment of the main sound expansion system: adjust the PAN on the left sound channel input channel of the CD record to the left side on the tuning table. The PAN on the right channel input channel is adjusted to the right, the gain knob Gain on the two channels is adjusted to make the corresponding peak indicator light in a better state, and the corresponding channel pusher is in the 2 / 3 position. Push the left and right controls of the pitch until the audience is enough. Then adjust the room balance, segment, divided into high, medium high, medium low, low four frequency bands, each two scale frequency points for a group. Make a subjective evaluation according to the listening sound, it is better to start from the middle and high frequency points, and then up or down other scale frequency points to improve the decay gain, until the pitch, medium and low balance heard in the audience is roughly the same as that heard in the original headphones. At this point, the distribution curve of the push bit keys on the room equalizer is the qualitative compensation curve. In the later tuning process, this adjustment cannot be changed arbitrarily.

   
   

      2. Equilibrium adjustment of auxiliary sound expansion system engineering room: first pull down the left and right main control pusher on the console, turn off the main sound expansion sound, put the input sound signal into the marshalling bus, and push the marshalling output master control on the console until the music is heard in the audience, and the volume is moderate. According to the room equalizer method of adjusting the main sound expansion system, the room compensation curve of the auxiliary sound expansion system is obtained. 

      3. Room balance adjustment of the return sound expansion system: the same as that of the main sound expansion system, but the sound release volume is adjusted on the auxiliary knob.After adjusting the room balance compensation, do not change in the future expansion sound arbitrarily. 

"Listen to the good voice and gather positive energy!"Guangdong Wanchang Technology Industrial Co., Ltd. is a collection of product research and development, production, sales, engineering projects in one of the modern audio enterprise, its jazz dragon sound for 14 consecutive years won the top ten professional sound expansion system (national) brand title.Adhering to 18 years of industry experience to provide users with quality products and intimate service, the company was awarded the high-tech enterprise unit and municipal technology research and development center certificate by Guangdong Provincial Department of Science and Technology.Market-oriented and project-centered, the company's product business involves professional sound, lighting and stage design, educational equipment, intelligent broadcasting, square dance sound, home theater and other fields.