Foreign speaker technology status

Speaker and speaker system as the terminal, the quality of its quality, will directly affect the entire sound system, so as to meet the requirements of different environments and different audio equipment, in order to improve the quality of the whole sound system, foreign companies engaged in the production of speakers are constantly working to develop new products, improve electrical performance, and continue to develop new materials, new technology and the use of new design method. So in recent years have introduced a variety of speakers, with high power, high efficiency, directivity, and so on.
　　At present many foreign speaker manufacturing company with new magnetic materials, the new design method of the road, the flux balance, reduce the driving source inductance and thermal conduction model structure is arranged in the inner, so that you can make magnetic energy product can reach more than 3.6MGsOe. This is increasing the speaker to withstand the power capacity, increased the intensity of bass reproduction. Some of the loudspeaker diaphragm is made of titanium material, which makes the diaphragm, the high frequency of the loudspeaker is greatly extended, and the power capacity can be greatly improved. The bass speaker uses a laminated high density composite paper bowl. Flat wire is adopted because the flat wire is high, and the magnetic circuit is used to get high sensitivity.
　　Before is exponential in professional sound reinforcement in the most commonly used the horn, now with the progress of science and technology, new directivity horn began gradually replaced the simple exponential type. Pointing horn type by the different shapes of the side wall, the past simple linear and exponential become complex and discontinuous functions, to achieve a constant directivity.
　　Karaoke OK karaoke, dance halls and home theater speaker enclosure along with the development of science and technology, ceaseless emerge in large numbers of new products, these new products are not only technical performance superior, and high sensitivity, transient response, good dynamic range expand. This kind of speaker sound box is common to have two-way frequency division to divide a speaker and the three speaker sound box.
　　Two frequency loudspeakers is with a 8 Yingyu or a 6.5 inch woofer and ball top tweeters, if low frequency only a speaker, in order to guarantee point to and good phase characteristics, speaker unit to the wide range in vibration of piston and does not appear to be partitioned vibration, but this bass effect is very difficult to satisfy the people's requirements, so in order to meet the bass and have developed dumbbell type loudspeaker box, two 8 inch or 6.5 inches bass unit clamp a ball top tweeters bass enhancement.
　　Three way frequency loudspeaker box is added a midrange unit on the basis of two frequency, which can make full use of each unit of piston oscillation frequency, reduce the distortion and increase the power capacity. Both the two frequency or magnetic leakage have tri band with good performance.
　　In order to show the effect of the theater in general home theater surround sound, very important. At present, the surround sound can be roughly divided into two kinds, that is, the directional logic surround sound and DSP surround sound. DSP surround sound is the use of digital processing techniques to simulate the theater sound time survived the surround sound requirements of the front, middle and rear indicator speakers sound to balance and directivity.
　　Before most of the heavy bass output is the use of a large basin, but the bass effect is not very good. In order to meet the needs of the home theater sound market, many companies are committed to developing a large amplitude super bass speaker, the most representative of the radial neodymium magnetic system of 18 inches of the top of the 2 inch ultra bass speaker by controlling the thickness of the 0.5 inch long magnetic gap in the range of linear motion to increase the bass effect. In order to be able to have a very good bass effect in the small speakers, will be similar to the structure of the suspension in the film, so that the vibration of the film can be a long piston movement in the frame, so that the vibration of the basin can be up to 2cm, the diameter of a small speaker can also have a good bass effect.