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Basic features of the speaker
- Mar 20, 2018 -

(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 have polarity.

(2) The speaker has a cone. Its color is usually black and white.

(3) The appearance of the speaker has several major categories such as round, square and oval.

(4) The back of the speaker cone is a magnet. When the external magnetic speaker is touched by a metal screw driver, it will feel the presence of magnetism; in the internal magnetic speaker, there is no such feeling, but there is a magnet inside the housing.

(5) The speaker is mounted on the machine panel or inside the speaker.