Speakers and speaker technology developments.

Currently, foreign speakers and speaker in the production of more than 280 professional manufacturers (according AUDIO data), there are thousands of products. .Speaker and speaker audio playback system as the terminal, its quality is good or bad, will directly affect the entire sound system to play sound effects. .Speakers engaged in the production of major foreign companies have invested heavily in the power of the speaker constantly develop new products to meet different environment and different audio equipment and higher requirements. .In recent years, with digital audio technology, the requirements of the speaker and more demanding. .In order to meet the requirements of technology development to meet the needs of consumers, the world famous speaker companies are committed to improving the performance of the existing speakers, and research and development of speaker-specific new materials, new technology and apply new design methods. .I now know that large companies the world and its system of technical status of the speaker, characteristics and unique new technologies are described below: 1. The foreign status of the speaker and 1.1 speaker professional speaker technology mainly refers to the film, stage, hall, stadium, etc. .occasions, speakers and speaker boxes. .In recent years, with new materials, new technologies, new structures, new technology development, stereo, digital technology, CD and VCD of popular, professional speaker and the system also achieved great development, new products are emerging .. .U.S. JBL, EV, BOSE Corporation; British KEF, TONNY companies; Panasonic, Pioneer, Mitsubishi, TOA, YAHAMA companies have launched in recent years, a wide variety of professional speakers and speaker systems. .Their distinctive feature is under power, were more than 200W; efficiency, generally in the 98-100dB; directional wide. .To achieve the above characteristics, the world's leading manufacturers of Eight Immortals speakers recount. .The main approach taken by the following points: First, the use of new magnetic materials, the use of new magnetic circuit design. .Companies such as JBL's SFG used magnetic circuit design, which includes the flux balance, reducing the driving source inductance and thermal conductivity of the new structure set up. .Its energy product magnetic material used up to 3.6MGsOe above. .This makes the speaker power handling capacity increases, strong bass reproduction, with intensity. .Second, the use of new materials, such as the use of aerospace titanium diaphragm tweeter, because E · P titanium is superior than the companion material for manufacturing high-quality treble diaphragm. .Titanium diaphragm tweeter with high frequency by the larger extension of power capacity has increased greatly. .Woofer cone with laminated high-density complex. .Voice coil with flat wire, flat wire because the high duty factor, high utilization rate of the magnetic circuit gap, can obtain higher sensitivity. .The technology invented by the JBL, and other major companies followed suit. .Third, using the new horn, used in professional sound reinforcement and long-term exponential horn speaker has been a new point of the horn, etc. replaced. .Directivity horn and other key technology is the horn wall in different shapes, as in the past simple linear, exponential into a complex, non-continuous functional in order to achieve a constant directivity. .Fourth, the extensive use of computer CAD, CAM and CAT technology, the use of modern technology, mining the potential of traditional speakers, professional speakers to make products better. .Representative of the products, such as JBL's professional speaker speaker series MR, SR professional speaker speaker series. .1.2 AV speakers speakers mainly refers to the music center for home hi-fi system, karaoke OK karaoke bars, dance halls and home theater sound system speaker speakers. .AV speakers have made great progress in recent years, new products are emerging. .The world's major speaker companies have launched various forms of AV speaker enclosure. .They not only have the advanced technical performance, but also from a practical shape, increased sensitivity, extended dynamic range playback band broadening and good transient response and other technical characteristics. .There are two common frequency speaker enclosure: with an 8 or 6.5 inches of rain in the British woofer with tweeter dome. .As a public speaker in the low frequency would require the speaker unit has a wide range of piston vibration appears split without vibration, to ensure the ideal point and phase characteristics. .The Company under the requirements of enthusiasts seeking bass, but also have developed dumbbell-type speaker enclosure, with two 8-inch or 6.5-inch woofer sandwiched between a dome tweeter, designed to strengthen the bass. .Three-way loudspeaker Speaker: In the two based on the frequency increases a midrange unit, the advantage of full use of the piston oscillation frequency of each unit, reduce distortion and improve the capacity of the power crawl..