Speaker audio equipment.Audio equipment bar sales

　　A. The electrodynamic speaker is the most widely used. It uses the interaction force between the voice coil and the constant magnetic field to vibrate the diaphragm and produce sound. Electric woofers are mostly cone type, midrange speakers are mostly cone or dome type, and tweeters are usually dome type, ribbon type and horn type.

　　B. The cone speaker has a simple structure and high energy conversion efficiency. The diaphragm material used is mainly pulp material, or mixed with wool, silk, carbon fiber and other materials to increase its rigidity, internal damping and waterproof properties. The new generation of electric cone speakers uses non-paper diaphragm materials, such as polypropylene, mica carbonized polypropylene, carbon fiber textiles, bulletproof cloth, hard aluminum foil, CD corrugated, glass fiber and other composite materials, and its performance is improved.

　　C. Dome speakers are divided into soft dome and hard dome. The diaphragm color silk, silk, phenolic resin impregnated cotton cloth, chemical fiber and composite materials of the soft dome speaker are characterized by soft playback sound quality; the diaphragm color aluminum alloy, titanium alloy and beryllium alloy of the hard dome speaker, Its characteristic is that the playback sound quality is good.

　　D. The radiation mode of horn speakers is different from that of cone speakers. After the diaphragm vibrates, the sound diffuses through the horn. Its characteristics are high electro-acoustic conversion and radiation efficiency, long distance, low distortion, but narrow playback frequency band and directivity.

　　E. The voice coil of the ribbon speaker is directly made on the entire diaphragm (aluminum alloy polyimide film, etc.), and the voice coil and the diaphragm are directly coupled. The alternating magnetic field produced by the voice coil interacts with the constant magnetic field, causing the belt diaphragm to vibrate and radiate sound waves. It is characterized by fast response speed, low distortion, fine playback sound quality, and good layering.

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