Amp structure?

Time:2013-11-28 | Read:560 | Posted: Site Editor
The speaker 
Speakers in the audio equipment is one of the most weak, for the acoustics, it is one of the most important parts. The speaker has a variety of FenLeiShi: according to the change can methods can be divided into electric, magnetic, piezoelectric, digital, etc; According to the diaphragm structure can be divided into single basin, composite paper paper, composite guide, coaxial, etc; According to the diaphragm can be divided into beginning cone basin type, ball type, plate type, belt conveyor, etc; According to replay the frequency can be divided into high frequency, intermediate frequency and low frequency, low frequency and the whole band speakers; Can be divided into the form of the magnetic circuit magnetic type, magnetic type, double magnetic circuit type and block type, etc; According to the nature of the magnetic circuit can be divided into ferrite magnets, boron neodymium magnets, alnico magnets speakers; According to the diaphragm materials can be divided into paper and paper cone speaker, etc. 
stereo 
A, the most widely electricity-powered loudspeaker, it USES voice coil and diaphragm between constant magnetic field force vibration and sound. Dynamic bass speaker in the majority with cone tub, mediant loudspeaker is cone tub or ball type more, high-pitched loudspeaker with ball type and belt conveyor, the cylinder is commonly used. 
B, the loudspeaker cone basin of simple structure, high energy conversion efficiency. It USES the diaphragm material is given priority to with the pulp material, or material such as wool, silk, carbon fiber, in order to increase its rigidity, damping and waterproof performance. Basin of a new generation of dynamic cone speaker use non-paper-made diaphragm materials, such as polypropylene, mica polypropylene carbide, carbon fiber textiles, bulletproof, glass fiber cloth, hard aluminum foil, CD ripple composite material, such as improving performance improvement. 
C, ball loudspeaker has a soft ball and hard ball. Soft ball diaphragm of the speaker color silk, silk, cotton, composite materials of phenolic resin impregnated, its characteristic is mellow replay sound quality; Hard ball speaker diaphragm colour materials such as aluminum alloy, titanium alloy and beryllium alloys, its characteristic is replay sharp sound. 
D, no radiation mode of the speaker and the loudspeaker cone basin is different, this is after the diaphragm vibration, sound after the trumpet to spread out again. Its characteristic is acoustic conversion and high radiation efficiency, distance, small distortion, but replay a narrow band and directivity. 
E, the belt type of speaker voice coil directly manufacture throughout the diaphragm (aluminum alloy polyimide film, etc.), direct coupling between voice coil and diaphragm. Voice coil production of alternating magnetic field interacting with a constant magnetic field, the vibration and radiation belt type diaphragm sound waves. Its characteristic is fast response speed, small distortion, replay the sound quality is exquisite, administrative levels feels good. 
enclosure 
Sound box is used to eliminate the speaker unit short circuit, inhibit its acoustic resonance, broaden its range of frequency response, reduce the distortion. Speakers have books posture of body shape structure and floor, and vertical and horizontal. Chamber is closed, the inverter type structure, with the general formula, empty paper pot, the labyrinth, the symmetric drive type and tube type, and other forms, the most used is closed, the inverter type and the general formula. 
French speakers belong to large speakers, body height above 750 mm, bookshelf speaker cabinet height under 750 mm, 450 mm to 750 mm as the medium between the bookshelf speakers, below the 450 mm for small bookshelf speakers. 
Home cinema systems of the front main speakers for vertical speakers, have used book posture, also have use floor, depending on size of audiovisual room area, and the size of the amplifier, and personal interests. In general, for audiovisual room under 15 square metre, appropriate chooses medium-sized bookshelf speakers; Less than 10 square meters should choose small bookshelf box; More than 15 square meters room, can choose medium bookshelf speakers or landing box. Front main speakers, speakers and surround speakers are in the majority with inverter type design, the second is airtight and 1/4 wavelength loading type, labyrinth, etc. Mega bass speaker in the majority with general formula and double cavity double opening type, followed by inverting type, closed. 
English name: the Speaker; 
Chinese name: speakers 
Pinyin: yinxiang