The status, characteristics and new technology of the speakers

In recent years, with the development of digital audio technology, the requirements of the speakers are also more demanding. In order to meet the needs of the development of technology and meet the needs of consumers, the world famous speakers company are dedicated to improving the performance of the existing speakers, and research and development of new speakers for new materials, new technology and the use of new design method.
Now the world famous company's speakers and its system technology status, characteristics and unique new technology introduced as follows:
One: The technical status of foreign speakers and speakers
1. Professional speakers
Is mainly used for loudspeaker and loudspeaker box film, stage, halls, sports venues and other occasions. In recent years, with the development of new materials, new technology, new structure, new technology, the application of stereo technology, digital technology, CD and VCD, the professional speakers and their systems have made great development, new products continue to emerge. The new technology, new technology, new technology, new technology, new material, new technology, new material, new technology, new material, new technology, new material, new technology, new material, new technology, new material. JBL, EV, BOSE, KEF, TONNY,, Panasonic, pioneer, MITSUBISHI, YAHAMA and TOA, have been introduced in recent years. They are characterized by a large, high power, high efficiency, high efficiency, and generally 98-100dB, wide 200W. In order to achieve the above characteristics, the world famous speaker manufacturers The Eight Immortals Crossing the Sea Gexianshentong.
The main methods are as follows:
First, the use of new magnetic materials, the use of new magnetic circuit design method. Such as JBL company adopted the SFG magnetic circuit design, which contains a magnetic flux balance, reduce the amount of driving source inductance and heat conduction of the new structure. The use of magnetic materials and its energy product is more than 3.6MGsOe. This makes the capacity of the speaker to withstand the increase in the capacity of the playback of the bass, strong, strong.
Second, the new materials, aerospace titanium material such as the use of treble loudspeaker, because ti e - P than companion materials superior, suitable for manufacturing high-quality tweeters diaphragms. The high frequency of the high frequency and high frequency of the titanium diaphragm is greatly improved. The bass speaker uses a laminated high density composite paper bowl. Because of the high percentage of the flat wire and the high utilization ratio of magnetic circuit, the sensitivity of the voice coil is high. The technology is invented by JBL company, and other major companies are following the example.
Third, using the new horn, long-term use in professional sound reinforcement in the exponential horn loudspeaker has been new directivity horn replaced. Such as pointing to the key technology of the horn in horn with different shapes of side wall and become complex, discontinuous function due to past simple linear, exponential, to achieve a constant directivity.
Fourth, the use of computer CAD, CAM and CAT technology, the use of modern technology to tap the potential of traditional speakers, so that professional speakers products excellence. Representative products, such as MR company's JBL professional speakers speaker series, SR professional speakers speaker series.
2. AV speaker
Mainly refers to the for home hi fi audio system combination, karaoke OK karaoke, dance halls and home theater sound system of loudspeakers. AV speakers have made great progress in recent years, new products continue to emerge. All the world's major speakers have introduced various forms of AV speakers. They not only have advanced technical performance, but also from the practical modeling, improve sensitivity, expand the dynamic range, broaden the playback frequency band and good transient response and other technical characteristics.
There are two common frequency loudspeakers: tweeters with a 8 or 6.5 inch woofer Yingyu plus ball. Because of the low frequency of a loudspeaker, the speaker unit has a wide range of piston vibration and does not appear to split the vibration, so as to ensure the ideal directivity and phase characteristics. The company according to the pursuit of enthusiasts bass and have developed dumbbell type loudspeaker box, with two 8 inch or 6.5 inches bass unit between the clip a dome tweeter, aimed at strengthening the bass. Three way frequency loudspeakers: added a midrange unit on the basis of two frequency, the utility model has the advantages of is make full use of each unit of piston oscillation frequency, reduce the distortion, improve the power bearing capacity to love.
AV speakers another remarkable characteristic is to have good anti leakage magnetic properties, magnetic circuit to with magnetic shielding design, to ensure that does not affect the video image. Today, popular multidimensional stereo and home theater system is to show the cinema audio and visual effects in the general family, surround sound is part of, and is a very important part.
Now the market is popular around the sound is generally divided into two kinds, one is from the early "four channel" evolution of the Dolby directed logic surround sound; the other is the first developed by DSP YAHAMA surround sound. DSP surround sound is a digital processing technique to simulate the sound effects of different spaces. This requires the front, middle, rear indicator speakers sound to balance, pointing to the ideal. Acoustic boundary engineers to improve the performance index of the AV speakers were unremitting efforts, by means of system design, experiment and simulation, and continuously explore the mysteries of the AV speakers in the world, in which on the foundation of listening, to ensure that the speaker objective parameter occupies an important and necessary role.
Representative products, such as JBL company of home theater speaker speaker system, including pre main channel, mid channel, surround the sound track and ultra bass of a total of seven speakers. Front main channel with two 200mm bass unit, two 127mm mediant unit, a titanium film ball top tweeters and horn tweeter. In the movie mode, use the horn type loudspeaker. The use of the film mode when the trumpet - type high - pitched speakers, enjoy the music when using titanium diaphragm dome. Playback of the sound design very comprehensive, using the multichannel sound equalizer and a 7 channel quality, the use of digital technology in small family space create the majestic theater sound.
3. Heavy bass speaker
In the past, in order to achieve the true bass output, the designer uses the large vibrating basin as much as possible. Such as KLIPSCH's 27 inch ultra bass speakers; EV company developed 30 Inch Tapered super bass speakers, etc.. In recent years, the booming home theater sound market to promote the research and development of large amplitude and ultra bass speakers. Representative products are: AURASOUND radial neodymium magnetic system of 18 inch ultra bass speaker.
By controlling the thickness of the top plate and using a 0.5 inch ring in the 2 inch long magnetic gap, a large linear range of motion is obtained.
PINEER SUBWOOFER SPEAKER unique initiative, viewed from the outside, people may think it has no dangling edges. In fact, it will be similar suspended edges paste structure after the diaphragm, let diaphragm can longer movement of the piston in the cylinder shaped framework. The ultra bass speaker vibrating basin can forward and backward movement of 50px, 6 inch diameter woofer, at 50 Hz up to 100dB SPL. This is traditional woofer difficult to achieve. Representative products, such as KEF, AV1 active super bass sound box.