How to choose the stage sound?

One, the sound system should have a strong power reserve: outdoor open-air sound field, need to have a strong power, because the outdoor sound field to improve the sound pressure level of 3db, the power needs to be increased by a factor of 10;

Two, to be hoisted speakers: outdoor cultural and artistic performances speakers placed in the location can not be too low, the low position of the speakers sound wave is easy to be the audience human body acoustic absorption, resulting in a sweeping acoustic phenomenon, especially so that the middle and high audio Loss of great, so we should use hanging speakers installed, midrange or treble horn and outdoor special speakers, so that the sound waves of the speakers in the air radiation distance is relatively far, so that the audience can get enough loudness;

Three, choose a high sensitivity mic, so that you can enhance the mic's acoustic gain, so that the audience can get enough loudness. Outdoor performances are often MIC and mixing console distance are farther, so you can choose the appropriate wireless MIC tuning is good