What Is a Plate Amplifier?

Flat panel audio is composed of a sound source input device, a signal amplifier (power amplifier) and a speaker. It is a complete system that excites the bending wave in the sounding board through an exciter (driving body) to make sound. After years of market expansion in the industry, it has been widely used in home theater systems, background music systems, multimedia sound systems, and public address systems.

Flat audio

Flat panel audio is composed of a sound source input device, a signal amplifier (power amplifier) and a speaker. It is a complete system that excites the bending wave in the sounding board through an exciter (driving body) to make sound. After years of market expansion in the industry, it has been widely used in home theater systems, background music systems, multimedia sound systems, and public address systems.

Chinese name

Flat audio

Foreign name

flat speaker

Origin

Late 1990s

Attributes

Yes

Flat speakers are murals and speakers, and speakers without speakers. The sound is emitted directly from the screen. It is a picture hanging on the wall. It is actually a speaker. The use and function of flat speakers are the same as traditional speakers.

Oil paintings, calligraphy and paintings, Chinese paintings, photos, knife-and-stroke paintings, embroidery, ten embroidery, etc. can be made into speakers, flat speakers are customized and customized, and can be produced according to customer requirements.

In the late 1980s, researchers from the British Ministry of Defence tried to reduce the noise of combat helicopter engines by using composite planar materials to seal them.

The pronunciation vibration principle of the flat horn is very different from the radiated vibration pronunciation of the traditional horn. It is adhered to a special flat plate by a small driver and in a specific designated relevant position. This driver will drive when it conducts electricity. This flat plate produces wave-like vibrations to conduct sound.

Due to the different constructions, the design of flat panel speakers differs from traditional speakers. The design focus of the flat panel speaker has four items (pictured): the driver (Exciter), vibration plate (Cone), vibration position and suspension system (Suspension), rear box (Rear Box).

1. Drive body. It is equivalent to a heart of a flat panel speaker. The main point of the design of the driver is that its effective stroke is very small, generally not more than 2m / m2; secondly, the voice coil part should not be too heavy, otherwise the high frequency part will have more serious distortion. The design requires light weight, small volume and large magnetic force. Based on the above factors, we use high magnetic materials. Generally, the magnetic flux density must be greater than 10,000 Gauss to achieve better performance. Sometimes in order to increase the output, two or four drivers are used to increase the output sound pressure, and more than one driver can be used to obtain a better frequency response curve. As for the use of several drivers, it depends on the size of the vibration plate. And weight.

2. Vibration plate. Like the human vocal cord, it plays a decisive role in the tone, the size of the sound, and the flatness of the sound. Therefore, it plays an important role next to the Exciter in the flat panel speaker.

3 Suspension system. The vibration principle of the flat panel speaker is completely different from the vibration principle of the traditional speaker. Generally, the traditional speaker uses a piston-type vibration method; the vibration of the flat panel sound uses a random vibration method, so its minimum resonance frequency is not only one point, but a dozen points. A well-designed flat panel sound, There are even more than twenty points. And its driving point is not in the center, because the center cannot obtain the maximum sound pressure and the smoothest frequency response curve, but at the best position of the node vibration, plus four suspensions with a ratio of 1: 9. The hanging points constitute a reasonable suspension system.

4 Back shell. The design of the rear shell must take into account the opening in the rear shell to increase the diffraction of sound waves, because the flat panel sound is wave-shaped vibration. Similarly, the same sound pressure will be generated on the back (only the phase is different), so there must be a window to increase the sound radiation, so that it will have better directivity and will not be different due to the different positions of the listener. Sound effects, which are fully taken into account in product design, make sound quality a leading position in the industry.

After years of market expansion in the industry, it has been widely used in home theater systems, KTV high-power flat-panel speakers, background music public address systems , multimedia computer speakers, charging Bluetooth wireless tablet speakers, and charging card radio tablet speaker systems.

It can be said that as long as traditional audio is used, flat speakers can be used. For example, more and more homes have gradually started using flat speakers to make 5.1 home theaters, home background music systems, and so on. There are also many projects, such as Cafes, hotels, schools, shopping malls, tea houses, and even some small fast-food restaurants have also been installed; the PC market has gradually demonstrated competitiveness ...

1. The directivity is very good. Generally speaking, speakers made of traditional speakers have poor directivity. You must stand in front of the speakers to hear the perfect sound, especially the treble. If you stand on the side of the speakers, there may be some background or accompaniment sound. You can't hear it; if you stand on the back of the speaker, maybe the sweet singing voice has become a sound that you don't want to appreciate. But the flat-panel speaker does not have the above problems, no matter where you stand, you can enjoy the complete and true sound.

2. Sound attenuation is small. Traditional speakers, when you get too close, you will find that the sound is loud, but when you are far away, you feel that the sound is much lower. The flat-panel speakers do not have the above problems. Whether you are close or slightly distant, the size of the sound you hear is not much different.

3 The fidelity of the sound is high. Generally, the traditional horn has a conical shape. When it vibrates and emits sound, it often concentrates the sound in the throat, compresses it, and then spreads it out. The sound that people hear is compressed and deformed. Flat panel speakers do not have the above problems, just because people have heard too much distorted sound in the past, so once they are exposed to flat panel speakers, they will feel ordinary when they start listening, but then they are often deeply expressed by their natural performance attract.

4 The slim profile does not take up space. Due to the special structure of the flat-panel speaker, the speakers formed can be placed in any position. Unlike traditional speakers, due to different placement positions, the effects are greatly different.

Computer companion

5.1 Home Theater

Background music for office and business places

4. Meeting, entertainment OK

Five, charging card Bluetooth wireless system

• Personalized and customized.

• High degree of sound analysis and reduction.

• Built-in high-performance lithium battery, longer battery life.

• The world's leading decoding technology and super-display technology.

• Multi-audio source input interface, diversified performance.

• Mini remote control, user-friendly design.

• Built-in Bluetooth transmission, more convenience brought by technology.

The installation mainly adopts wall-mounted installation. According to the size of the speaker, determine the hanging position in the room, and you can hang it on the wall.

This problem is more important. Although there are not many flat-panel audio manufacturers in the domestic market, there are also some manufacturers of pseudo-flat panels. The basic identification method is as follows:

Thickness, the thickness of a single box exceeds 3.5CM or even exceeds 5CM,

The surface is covered with dense mesh.

Flat audio can show DIY personality home

All products of flat panel audio can be customized for each customer-picture, height, size, quantity, etc.

The flat-panel audio can choose the style of the picture and the fancy of the frame freely. Every corner of the DIY home. Flexibly tailored to the individual nature of the temple, to achieve personalized luxury audio-visual enjoyment. Make the home more artistic, full of the spirituality of music, and use music to create an artistic atmosphere for the scenic life of the home.