The working principle of speaker speakers.Domestic bar audio Vendor

　　The original work of the loudspeaker is: when the alternating current passes through the coil (voice coil), the coil cuts the magnetic lines of force (the loudspeaker has a constant magnetic field composed of magnets, etc.), and the coil will move. The direction and size of the movement are based on the direction and size of the input signal. And change. The movement of the coil drives the tympanic membrane to vibrate, and the movement of the tympanic membrane will compress or stretch the air, thereby spreading sound waves, so we hear the sound from the speaker.

　　Then why in general, there is a box outside the speaker unit instead of just one or more naked speakers?

　　This is not only for aesthetics and fixed support, but more importantly to obtain the required frequency characteristics, sound field distribution and special sound effects. This is because at low frequencies, the phases of the sound waves radiated from the front and rear of the speaker are opposite, and they will cancel each other out to form sound interference, and we cannot hear the sound, or the sound is very small. Adding a box is to eliminate acoustic interference. The specific design of the cabinet is related to the parameters of the loudspeaker unit and the sound effect you want to achieve. This is a very complicated subject.

　　The shape of the loudspeaker may not be round, oval or other shapes. Because the round shape is easy to make, most of them are round.

　　When choosing a speaker, you must choose a big brand, so that when a problem occurs, it can be solved as soon as possible. I can give you some good suggestions. Let’s talk about the two models of Hivi and Edifier first. Many friends have told me , Hivi’s price is high, there is a certain price-performance ratio, the sound quality is guaranteed, but the price is low, the sound will often have problems; the current cabinet technology level of the Edifier is not bad, but the quality of the speakers, objectively speaking, is in the same Among the high-end producers of these high-end products, it should be counted backwards. Recommend BT-audio rose red home theater, rose red is an American sound field theater, with an excellent sense of spatial positioning and presence. Designed with silent cabinet technology and dynamic equalization unit technology, it exhibits surprising pitch, a strong spatial sound field, pinpoint positioning ability, clear, powerful, and non-stained low frequency and amazing dynamic range. The timbre of each frequency band is uniform.

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