Secondly, make sure your room is sound-absorbing, such as making some sound-absorbing materials on the wall and laying some carpets on the floor to ensure that the reflected sound of the room is reduced.
Third, determine the sound pressure level to be achieved, as well as the number and characteristics of speakers.
According to the National Standard-Acoustical Characteristics Index of Sound Reinforcement System in Song and Dance Halls, the first-class song and dance halls and bars should be 103dB, and the second-class should be 98dB.
The expected sound power in your sound field is about 300 W-400 W ..
In other words, you need to buy four professional speakers, two of which can be distributed back and forth, and the lifting is the best. Each speaker should have 300 W-400 W, and the sensitivity of each speaker should be 98- 103 dB. So your sound field requirements can be met.
Fourth, professional speakers must have professional equipment to use. First of all, there must be a mixer, which is selected according to the number of microphones. If you sing, there are only 8 channels, 10 channels. Some mixers have their own effects, but they are not very nice.
Secondly, there must be a power amplifier. It's best to buy two amplifiers to push four speakers respectively.
If the funds are abundant, you can also add equalizers, effectors, feedback suppressors, voltage limiters and so on.
If you want to keep it simple, just click on jukebox-mixer (with effect)-amplifier-speaker.
The whole set of prices are also high and low, and the ordinary price is 8000- 12000. As for the brand, I think it's best for you to audition yourself. Personally, Harman is a speaker brand with good cost performance, Yamaha is a mixer brand, BASSCO is a power amplifier brand, and BESTSOUND is a jukebox brand.
Finally, I wish you success! ! !