A boring weekend, still without an appointment and nothing to do, I went to visit next door. As soon as I entered his house, I heard the melodious saxophone, sat on the sofa and drank the cappuccino he made specially for me. I was really intoxicated by this scene. I searched for the sound to see where it came from, but I couldn't find it. Asked him, he smiled strangely, got up and walked to the front of the picture of the eagle spreading its wings and swallowing the sky, pointing to the picture and saying that it came from here. I was stunned. Isn't this the painting that Tang Bohu painted for Zhu Zhishan? How can it make a sound? Neighbor said it was a flat-panel stereo. You see, it's a picture on the surface, but it's actually a stereo. Then he gave me a detailed introduction to the advantages and precautions of flat-panel audio.

Brief introduction of flat audio

Flat-panel audio is composed of sound source input device, signal amplifier (amplifier) and speaker, which is a complete system. Bending waves are excited in the resonance board by exciter (driver) to generate sound. After several years of market expansion, it has been widely used in: home theater system, background music system, multimedia audio system, public broadcasting system and so on.

Flat speakers are both murals and speakers, and they are speakers without speakers. The sound comes directly from the picture. Hanging on the wall is a picture, but it is actually a speaker. The use and function of flat speakers are the same as those of traditional speakers.

1 What are the advantages of flat-panel audio?

■ Ultra-thin shape, no space.

Because of the special structure of the flat speaker, the speaker can be placed in any position, unlike the traditional speaker, because the listening effect is very different because of the different placement positions.

■ Very good directivity

Generally, the speaker composed of traditional speakers has poor directivity, so you must stand in front of the speaker to hear more perfect sound, especially the high-pitched part; And if you stand on the side of the speaker, you may not hear some background or accompaniment sounds; If you stand on the back of the speaker, maybe that sweet song has become a voice you don't want to enjoy. However, flat panel speakers do not have the above problems. No matter where you stand, you can enjoy the complete and true sound.

■ High fidelity of sound.

Usually, the traditional horn is conical. When it vibrates to make a sound, it tends to concentrate the sound in its throat, compress it and then spread it out. What people hear is the sound of being compressed and deformed. Flat speakers will not have the above problems, just because people have heard too many distorted sounds before, so once they come into contact with flat speakers, they will feel very ordinary at first, but later they will often be deeply attracted by its natural performance.

■ Low sound attenuation.

Traditional speakers, if you get too close, you will find that the sound is very loud, and if you are farther away, you will feel that the sound is much smaller. How to install and maintain flat speakers without two flat speakers?

The installation mainly adopts wall-mounted installation. According to the size of the speaker, determine the position of indoor suspension and nail it on the wall. The debugging method of flat-panel audio is the same as that of traditional audio.

When decorating, the wiring should be slotted first, the position of the speaker should be positioned, and the wires should be left out. After the renovation, everyone is ready to install speakers. The speaker position is reserved, the wall is perforated, and the speaker is hung. Each speaker needs two hooks and two holes. Hang up the speaker, wire and connect the power amplifier. The amplifier is connected to a DVD or TV.

What are the precautions for using flat-panel audio?

● When wiring, pay attention to that the speaker wire is 30CM away from the wire, which belongs to strong current. When weak current and strong current interfere together, it is easy to produce noise and current sound.

●5. 1 The left and right surround speakers of the home theater need to be hung with TV or projected on the opposite wall, that is, behind the sofa. The speaker spacing should not be less than1.2m, and it is better to be separated by1.5m. ●5. 1 The three main speakers of home theater need to be hung with TV or projected on the wall, and the speakers should be separated by 20CM●. ● Don't connect the five channels of DVD and power amplifier wrong, and neither should the five channels of speaker and power amplifier.

● When wiring, pay attention to tighten the terminal and plug in the interface to avoid short circuit of the terminal, which is easy to produce noise or current sound, and will burn out the power amplifier in serious cases.

● If you can't tell which speaker is ringing, you can touch the picture of the speaker with your hand, and the speaker will vibrate slightly at work.

It is best to install the newly renovated house one week after renovation, so as to avoid the poor quality of wall latex paint and chemical reaction with hand-painted oil painting or printed oil painting, resulting in fading of the picture.