圆锥形扬声器 L4

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The loudspeaker horn has a transformer inside for long distance transmission. It is often used outdoors, with constant voltage amplifiers, and the longest distance transmission is no more than 100 meters. The speaker is also called a "horn". It is a very commonly used electro-acoustic transducer, and it can be seen in sounding Electrical and electronic equipment. English name: Loudspeakers