loudspeaker

　　Loudspeaker, commonly known as horn, is an electro-acoustic device that can convert electrical signals into sound, and is an important equipment in audio systems. As one of the electro-acoustic transducers that convert electrical energy into sound energy, the quality and characteristics of speakers play a decisive role in the sound quality of the entire sound system.

　　There are many types of speakers, which can be divided into electric type (ie moving coil type), electrostatic type (ie capacitive type), electromagnetic type (ie reed type), piezoelectric type (ie crystal type), etc. , According to the shape of the diaphragm, there are mainly cones, flat plates, domes, ribbons, flakes, etc.; according to the frequency of sound, it can be divided into woofers, midrange speakers, tweeters, full-band speakers, etc.

　　When the voice coil in the magnetic field has an audio current passing through it, a magnetic field that changes with the audio current is generated. The loudspeaker has the advantages of simple structure, rich bass, soft sound quality, wide frequency band, but low efficiency. The shape of a common paper cone speaker is shown in the figure.

　　This is a commonly used 40mm round iron cone frame internal magnetic full-range speaker, using PU edge paper cone, 16-core KSV voice coil, good rigidity, not easy to produce split vibration, light weight, high resolution, good transient response; The exquisite cast iron basin frame is formed at one time, with high compression protection performance, and the overall appearance is textured. The rated power is 5W, the sound range is 155Hz~20KHz, the ultra-wide sound range, the sound quality is pleasant and clear, and it can also be used in multimedia speakers, wireless desktop speakers, and HiFi speakers.

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