【 Weak current College 】 speakers classification and characteristics---Power By 【 China power house network 】

There are several categories of speakers: according to the transducer can be divided into electric, electromagnetic, piezoelectric, digital, etc; press the diaphragm structure can be divided into single Cone, composite Cone, cylinder, composite, coaxial etc; beginning by diaphragm can be divided into cone type, qiudingshi, plate type, belt, etc; press the replay spectrum can be divided into high, medium, low and full band speakers; press the magnetic circuit forms can be divided into external magnet, magnet, magnetic-and double-shielded, etc; as to the nature of the magnetic circuit can be divided into ferrite magnets, magnet neodymium boron, Alnico magnet speaker; press the diaphragm material can be divided into paper and non-paper cone speakers, etc.

A, most widely used electrodynamic loudspeakers, which utilizes voice coil and a constant interaction between the magnetic field force to diaphragm vibration and audible. Electric bass speakers to Cone type, audio speakers are cone-qiudingshi, treble speakers or the qiudingshi and belt, drum for commonly used.

B, cone-speakers of simple structure, high energy conversion efficiency. It uses the diaphragm material to pulp material, or mixed with wool, silk, carbon fiber, and other materials to increase the rigidity and damping and waterproof properties. Next-generation electric cone speakers use a non-paper diaphragm materials such as polypropylene, MICA polypropylene carbide, carbon fiber textile, bullet-proof fabric, rigid aluminum foil, CD, corrugated, glass fiber composites, performance and progress.

C, qiudingshi speakers have soft ball and hard ball. Soft ball item speaker diaphragm polychrome silk, silk, impregnated phenolic cotton cloth, chemical fiber and composite materials, characterized by gentle sound playback; hard ball speaker diaphragm color aluminum alloy, titanium alloy and beryllium alloys and other materials, characterized by replaying sound crisp.

D, drum speaker radiation patterns and cone-speakers, this is the diaphragm vibration, sound diffusion through the Horn and then go out. It features audio conversion and radiation efficiency high, distance, low distortion, but replay band and directivity is narrow.

E, belt type speaker voice coil direct production throughout the diaphragm (aluminum polyimide film, etc.), the voice coil and diaphragm coupling between direct. Voice coil production of alternating magnetic field and magnetic interaction, so that the belt type diaphragm vibration and acoustic radiation. Its characteristics are response speed, low distortion, replay sound and sense of depth.