Avoid mistakes in audio use

It is important to have a set of high-end equipment, but it is also important to use them correctly. At present, in the general audio enthusiasts, there are some errors in the use should be avoided.

（1） Put the equipment in the cabinet. For decoration and protection, some people put the equipment into the customized cabinet, which will make the sound turbid due to the latent vibration caused by the space in the cabinet. The power amplifier and other equipment are easy to overheat and aging due to insufficient air circulation. If the speaker is installed in the wall, the sound effect will become stiff.

（2） Stack the equipment. Many people like to overlap the video player, amplifier, tuner, digital to analog converter and other machines, which will cause mutual interference, especially the serious interference between the radium camera and the power amplifier, which will make the sound tone hard and produce a sense of depression. The correct way is to put the equipment on the sound stand designed by the manufacturer.

（3） The power plug is positive or negative. A good system of positive and negative processing of power plug can make the tone level clear, natural and smooth; if the positive and negative are inconsistent or uneven, the tone will be hard and rough.

（4） The wiring is not firm and clean. If the tone of the system is dry and hard, one of the reasons may be poor contact, such as loose plug, oxidation of contact surface, dust or oil stain, etc., so it should be checked frequently to keep the contact surface clean.

（5） The sound box should be placed according to local conditions. Some people have other furniture in the room first, and the speaker will be placed in a position to accommodate the furniture. The correct way is to determine the listening distance first, and then place the speaker at 1 / 3 between the seat and the opposite wall. The distance between speakers is 0.7 times of the direct distance between the listener and the speaker, and the height of the speaker should be level with the listener's ear and high pitch unit.

（6） Improper wiring treatment. When processing wiring, do not tie the power line and signal line together, because the alternating current will affect the signal; neither the signal line nor the horn wire can be knotted, otherwise the tone will be affected; if the signal line or horn wire is too long, it can be shortened. Many signal lines are directional. Don't make a mistake.

（7） Take room acoustics for granted. In addition to clear sound and sound insulation, it is more important to deal with the reflection and refraction of sound waves. This requires consideration of the volume, size, firmness and use of materials of the room. If you are not an expert, even if you decorate the room in a luxurious and beautiful way, it is difficult for the acoustics to achieve the best effect.

（8） Self deception. If the equipment plays a certain kind of concert very well, while playing another kind of music is not ideal, this shows that the system has not reached the ideal level, and needs to learn more, listen more and observe more, so as to improve.