Speakers are also called "horns". It is a very commonly used electro-acoustic transducer device, which can be seen in sound-producing electronic and electrical equipment.
The loudspeaker is a kind of transducer device that transforms the electric signal into the acoustic signal. The performance of the loudspeaker has a great influence on the sound quality. The speaker is one of the weakest components in audio equipment, and it is the most important component for audio effects. There are many types of speakers and their prices vary greatly. Audio electric energy makes the cone or diaphragm vibrate and resonate (resonate) with the surrounding air to produce sound through electromagnetic, piezoelectric or electrostatic effects.
Low-grade plastic speakers have no sound quality at all because of their thin cabinets and inability to overcome resonance (some well-designed plastic speakers are far better than poor-quality wooden speakers); wooden speakers reduce the sound stain caused by cabinet resonance. The sound quality is generally better than plastic speakers.
Usually multimedia speakers are designed with two-unit two-way frequency, a smaller speaker is responsible for the output of the mid-to-treble, and another larger speaker is responsible for the output of the mid-bass.
