Basic characteristics of loudspeaker

(1) The speaker has two terminals (two leads). When a single speaker is used, the two pins are not divided into positive and negative polarity. When multiple speakers are used at the same time, the two pins are divided into polarity.

(2) The speaker has a paper basin. Its color is usually black or white.

(3) The shape of loudspeaker can be divided into several categories, such as round, square and oval.

(4) The back of the loudspeaker paper basin is a magnet. When the external magnetic loudspeaker contacts the magnet with a metal screwdriver, it will feel the existence of magnetism; There is no such feeling in the internal magnetic speaker , but there is a magnet inside the shell.

(5) The water-proof loudspeaker is installed on the machine panel or in the speaker box.

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MF Speaker

Generally speaking, as long as the frequency response curve of the mid-range loudspeaker is flat, the effective frequency response range is greater than the width of the playback frequency band it undertakes in the system, and the impedance is consistent with the sensitivity and low-frequency unit. Sometimes, if the power capacity of the midrange is not enough, you can also choose the midrange with high sensitivity and higher impedance than the bass unit, so as to reduce the actual input power of the midrange unit. Alto units generally have cone basin and ball top. However, its size and power are larger than the tweeter and suitable for playing medium audio. The diaphragms are mainly composed of soft paper diaphragm and a small amount of soft alloy diaphragm.

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