Speakers profile

English name: Loudspeakers in stereo speaker is one of the most vulnerable to the device and acoustics, it is one of the most important components. The speaker's variety, and the price difference. Audio power through the electromagnetic, piezoelectric or electrostatic effect, make its paper POTS or diaphragm vibration and the surrounding air resonate (resonance) and sound. According to the structure and mechanism in dynamic points (type), capacitance (static), piezoelectric ceramic), (crystals or assolenoid style (pressure reed), electric and pneumatic type ionic type, type speaker with speakers acoustic performance is good, solid structure, low cost advantage, wide application, According to the acoustic radiation materials, paper POTS, established speaker; cavitation, According to the paper cone shape points round, oval, double paper folding and rubber ring, According to the working frequency points bass, mediant and notes, some still into special, TV special tape recorder, common and high fidelity loudspeaker, etc. By voice coil impedance points low impedance and high impedance, According to the effect of sound environment and spoke straight. Speakers into built-in speakers and external speaker, general speaker referred to therein outside the box. Built-in speakers refers to MP4 player has built-in speakers, so that users can not only through the headphone jacks can also through built-in speakers to listen to the sound MP4 player. The MP4 player has built-in speakers, can not external speaker, also can avoid long pendant headphones.