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The loudspeaker is the weakest component in the sound equipment, and it is the most important component for the sound effect. There are many kinds of loudspeakers and the price varies widely. Audio energy is produced by electromagnetic, piezoelectric, or electrostatic effects that cause the basin or diaphragm to vibrate and resonate with the surrounding air. According to the transducer mechanism and the structure of the distributor coil (electric), capacitor (static), piezoelectric (crystals or ceramics), electromagnetic (pressure spring), electro-ionic and pneumatic loudspeakers, electric loudspeakers have the advantages of good electro-acoustic performance, solid structure, low cost and so on, widely used according to the sound radiation materials. Basin, tubular and diaphragm loudspeakers; circular, elliptical, double paper basins and rubber folding rings according to the shape of paper basins; bass, mid-tone and high-tone according to the working frequency; some are also divided into recorder, television, ordinary and high-fidelity loudspeakers; low impedance and high impedance according to the impedance of voice coils; direct spoken according to the effect And environmental sounds.
The loudspeaker is divided into a built-in loudspeaker and an external loudspeaker, while the external loudspeaker is generally referred to as a loudspeaker. The built-in speaker refers to the MP4 player with a built-in speaker, so that users can not only through the headphone jack but also through the built-in speaker to listen to the sound of the MP4 player. The MP4 player with built-in loudspeaker can not use external speakers, but also can avoid the inconvenience caused by long time with headphones.
Item Name 2030
Size 2030mm
Shape Square
Impedance 16ohm
Standard Power Rate 0.01W
Max Power Rate 0.02W
F0 150±30HZ
Frequency Range 120~20K
Average Sound Pressure 77±3/1W 1M
Material Rare Earth

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