What are the components of the loudspeaker?

Loudspeaker is a kind of transducer which converts electrical signal into acoustic signal. The performance of loudspeaker has great influence on sound quality. Loudspeaker is one of the weakest parts in sound equipment, but for sound effect, it is one of the most important components. Speakers come in a wide variety and vary widely in price. Audio electrical energy produces sound by electromagnetic, piezoelectric, or electrostatic effects that vibrate the pan or diaphragm and resonate with the surrounding air.

Low grade plastic speaker because of its box thin, unable to overcome resonance, no sound quality at all (there are also part of the design of good plastic speakers to be far better than inferior wooden speakers); Wooden speakers reduce the box resonance caused by the sound dye, sound quality is generally better than plastic speakers.

Usually, multimedia speakers are two-unit, two-frequency design, with a smaller speaker responsible for the output of medium and high pitch, and another larger speaker responsible for the output of medium and low pitch.

The selection of speakers should consider the material of the two speakers: the treble unit of the multimedia active speaker is based on the soft ball top (in addition to the titanium film ball top for analog sound source, etc.), it and the digital sound source can reduce the cold sense of high frequency signal, giving a person a cold, slim, ethereal feeling. Multimedia speakers are now in good quality silk film and low cost PV film and other soft ball top.

Bass unit it determines the characteristics of the sound of the speaker, the selection of some relatively important, the most common are the following: paper basin, and there are coated paper basin, paper based wool basin, compact basin and so on. Paper basin sound natural, cheap, good rigidity, light material, high sensitivity, the disadvantage is poor moisture resistance, consistency is difficult to control when manufacturing, but the top HiFi system in the paper basin manufacturing everywhere, because the sound output is very average, good reducibility.

Bulletproof cloth, has a wide frequency response and low distortion, is the first choice of love strong bass, the disadvantage is high cost, complex production process, sensitivity is not high, the effect of light music is not very good.

Wool woven basin, soft texture, it is excellent for soft music and light music performance, but the bass effect is not good, lack of strength and shock.

PP(polypropylene) pot, it is widely popular in high-grade speakers, good consistency and low distortion, all aspects of performance are commendable. In addition, there are fiber diaphragm and composite diaphragm due to the high price is rarely used in popular speakers.

Speaker size is naturally the bigger the better, large caliber woofer can have better performance in the low frequency part, which is in the purchase can choose. Speakers built with high-performance speakers mean lower transient distortion and better sound quality. Common multimedia speakers woofer speakers are between 3 and 5 inches. Speakers built with high-performance speakers also mean lower transient distortion and better sound quality.

Our most common electric tapered paper speaker. Electric tapered speaker that in the past we often say into the paper basin speaker, although 2014 diaphragm is still mainly to the paper basin, but at the same time there are many polymer material diaphragm, metal diaphragm, with the tapered speaker name is true. The cone paper basin speaker is roughly composed of magnetic loop system (permanent magnet, core column, magnetic plate), vibration system (paper basin, voice coil) and support auxiliary system (centering support piece, basin frame, cushion edge), and so on.

1 Voice coil: the voice coil is the driving unit of the conical paper basin speaker, it is a very thin copper wire divided into two layers around the paper tube, generally around dozens of circles, also known as the coil, placed in the magnetic core column and magnetic plate composed of the magnetic gap. The voice coil is fixed to the paper basin. When the sound current signal passes through the voice coil, the voice coil vibrates to drive the paper basin to vibrate.

2. Paper basin: tapered paper basin speaker tapered diaphragm material there are many kinds, generally natural fiber and artificial fiber two categories. Natural fibers are often made of cotton, wood, wool, spun silk, etc., and artificial fibers are made of rayon, nylon, glass fiber, etc. Because the paper basin is the sound radiation device of the speaker, to a considerable extent determines the speaker's sound performance, so no matter what kind of paper basin, it requires both light weight and good rigidity, not due to the change of environmental temperature and humidity and deformation.

3. Folding ring: Folding ring is set up to ensure the paper basin along the axial movement of the speaker and limit the lateral movement, while blocking the paper basin before and after the empty dare circulation. The materials for the ring folding are glued to the paper basin by hot pressing, including plastic and natural rubber.

4. Centering support: Centering support is used to support the combination of the voice coil and the paper basin to ensure that it is vertical and not skewed. There are many concentric rings on the centering branch, so that the voice coil can move up and down freely in the magnetic gap without transverse movement, so as to ensure that the voice coil does not collide with the magnetic conductive plate. The dust cover on the centering support plate is designed to prevent falling magnetic gaps such as external dust and prevent dust from rubbing with the voice coil, resulting in abnormal sound of the speaker.