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As audio terminals, the quality of loudspeakers and speaker systems directly affects the sound quality of the entire audio system. Therefore, in order to meet the higher requirements of different operating environments and different audio equipment, and to improve the sound quality of the entire audio system, various foreign companies engaged in speaker production are constantly committed to developing new products, improving electrical performance, and continuously developing new materials for special purposes New processes and application of new design methods. Therefore, in recent years, various types of loudspeakers have been introduced, which have the characteristics of high withstand power, high efficiency, and wide directivity.

At present, many foreign speaker manufacturing companies are using new magnetic materials, adopting a new design method that incorporates a new structure for magnetic flux balancing, reducing the inductance of the drive source, and heat conduction. This allows the magnetic energy product of the magnetic material to reach 3.6 MGsOe or more, which increases the capacity of the speaker to withstand power, and increases bass playback efforts. Some loudspeakers use titanium as their diaphragm, which greatly extends the high frequency of the speaker and improves its power capacity. The bass speaker adopts a laminated high-density composite paper basin. The voice coil adopts a flat wire, which can achieve high sensitivity due to its high duty factor and high utilization of magnetic circuit gaps.

Previously, the most commonly used horn in professional sound reinforcement was exponential type. Now, with the progress of technology, a new directional horn has gradually replaced the simple exponential type. The directional horn uses side walls of different shapes, transforming the simple linear and exponential forms into complex and discontinuous functional forms to achieve constant directivity.

With the development of technology, new products are constantly emerging for speaker speakers used in karaoke halls, dance halls, and home theaters. These new products not only have excellent technical performance, but also have high sensitivity, good transient response, and expanded dynamic range. This type of speaker speaker speaker commonly includes two channel frequency division speaker speakers and three channel frequency division speaker speakers.

The two-channel split speaker speaker speaker is composed of an 8-inch or 6.5-inch subwoofer unit plus a dome tweeter unit. If only one speaker is used for low and medium frequencies, in order to ensure good directivity and phase characteristics, it is required that the speaker unit have a wide piston vibration range without split vibration. However, this bass effect is difficult to meet people's requirements, so in order to meet the bass effect, We have successively developed dumbbell speaker speakers, using two 8-inch or 6.5-inch mid bass units sandwiched between a dome tweeter to enhance bass.

The three-way frequency division speaker box is based on the two-way frequency division by adding one mid-range unit, which can fully utilize the piston vibration frequency band of each unit, reduce distortion, and improve power tolerance. Both two frequency division and three frequency division have good magnetic leakage resistance.

In order to display the effects of cinemas in ordinary home theaters, surround sound is important. Currently, surround sound can be roughly divided into two types: directional logic surround sound and DSP surround sound. DSP surround sound uses digital processing technology to simulate the sound performance of a theater. This surround sound requires balanced sound from front, center, and rear indicator speakers, with ideal directivity.

In the past, most of the subwoofer outputs used large vibration basins, but the subwoofer effect was not very good. In order to meet the needs of the home theater audio market, many companies are committed to researching and developing large-amplitude subwoofers. The most representative 18-inch subwoofer with radial neodymium magnetic systems achieves greater linear motion range by controlling the thickness of the roof and using a 0.5 inch voice coil in a 2-inch long magnetic gap to improve the subwoofer effect. In order to have a good bass effect on small loudspeakers, a structure similar to a suspended edge will be pasted behind the diaphragm, allowing the diaphragm to make a longer piston movement in a cylindrical frame, so that the vibration basin can move up to 2cm back and forth, and speakers with even smaller apertures can have a good bass effect.

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