Audio division
The sound reproducing range of the sound system can generally be divided into eight ranges: subwoofer, bass, bass, midrange, alto, mezzo treble, sub treble, treble and extra treble. The audio frequency range can generally be divided into four frequency bands, namely the low frequency band (30~150Hz); Medium and low frequency band (150~500Hz); Medium and high frequency band (500~5000Hz); High frequency band (5000~20000 Hz).
The performance of frequency band to music
30~150Hz frequency band: it can express the low frequency components of music and make the audience feel strong and dynamic.
150~500Hz frequency band: it can express the expressiveness of a single percussion instrument in music, and is the part that expresses strength in low frequency.
500-5000Hz frequency band: mainly expresses the degree of restoration of singer's language and the expressive force of string music.
5000~20000Hz frequency band: mainly expresses the lubrication of music, but too much will break the sound.

Sound is a simplified everyday word, which is the abbreviation of sound system. It refers to a complete set of equipment that can restore and play audio signals.
With the progress of society, people yearn for a more colorful life. As a form of entertainment that has been popular for thousands of years, singing and dancing have penetrated into the lives of people of all ethnic groups. But with the development and progress of science and technology, people have more and more requirements for the performance form and venue of singing and dancing. The sound system is constantly improved and perfected with the needs of people. Large enough to meet the needs of tens of thousands of concert site sound reinforcement, small enough to meet the needs of individual family playing musical instruments, karaoke.

Sichuan Noline Information Technology Co., Ltd., with a registered capital of 50 million yuan and its brands: MBOS Mabosheng and AIHUAKAI, is an enterprise dedicated to the global audio and video industry and building a comprehensive platform for the cultural industry. It has gradually formed a whole industry chain enterprise integrating the research, development, manufacturing, sales and engineering of professional audio, power amplifiers, conference systems and peripheral equipment. It has always been committed to "let the world listen to our voice!" For the enterprise vision.
Noline Information Technology Co., Ltd. has built a high-quality and stable professional team, which uses the latest auxiliary design software in the world, has advanced CNC machining centers as production equipment and testing instruments, and has established cooperative development mechanisms with many world-class professional materials and accessories manufacturers, so that MBOS and AIHUAKAI brands go global.

Youmo Zhang

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