[Home Theater Network HDAV.com.cn] In fact, friends who have seen this topic already know that although this is a simple problem that cannot be solved, it is these seemingly brainless problems that make many friends' equipment Suffered from the disaster. This article mainly deals with some problems that need to be paid attention to when using home theater audio, and it is expected to attract attention.
1, mobile phones, TVs, refrigerators, etc. should be far away
For the protection of the speaker circuit, your desktop audio can be placed at will, but it must be kept away from mobile phones, cordless phones, TVs, refrigerators, microwave ovens, etc., far from the computer chassis. The placement of different electrical appliances, "well water does not make river water", can best keep the circuits of various electrical appliances from being damaged by mutual interference.
2, the boot sequence is stressful
The first thing we want to say is that the friends are very easy to forget. The reason for switching the home theater audio equipment is that the reason is that during the process of switching on and off, the equipment will be affected by the current, and the damage will be burned over time. Our equipment was smouldering in an instant.
Boot sequence:
Source device → audio processor device (frequency divider, equalizer, effects, etc.) → power amplifier → TV → projection.
The shutdown sequence is the reverse of the boot sequence, so that we can protect our equipment from impact damage to a certain extent, develop habits, and improve the life of our own audio equipment.
3, clean the sound to pay attention to the dead angle
As we all know, the cleaning of home theater audio equipment can not only improve the cleaning effect, but also improve the life of the sound to a certain extent, but when cleaning, the dead corner of cleaning may be a point we can easily forget. Just like the terminal of the audio wire is the clean corner that we are the easiest to forget.
The reason why the terminal of the audio equipment should be cleaned is because after a period of use of the terminal, there will be more or less oxidation, and the oxidized oxide film will affect the contact state of the audio equipment to reduce the sound quality of our equipment. Therefore, when cleaning, we can use detergent to clean the terminal contacts to ensure that our audio equipment can maintain the best connection at all times.
4, the wiring is not entangled
There are a lot of friends around, and in order to look more neat, many wires are tied together. This approach seems to be neat, but when you tie the wires together, there is also a place to pay attention. That is, do not tie the power cord and the signal cable together, because the AC power will affect the signal when it flows through the wire, causing damage to the sound quality of our equipment.
In addition, friends should not tie the signal cable and speaker cable. This method will also affect the sound quality of the device. If the signal cable and speaker cable are too long, they can be changed to shorten it, but the signal cable will have Directionality, never make mistakes when using, otherwise it will cause irreparable damage to wires and equipment.
5, the import audio voltage should pay attention to
Friends know that most of the domestic speakers are 220 volt power supply design, but some imported speaker products use 110 volt power.
If you continue to use this situation, your speakers may be scrapped in an instant. Before listening, check whether the wiring is correct and the position of the potentiometer is too large. I want to solve the voltage problem. I believe many people are very clear, as long as a transformer will be easily solved.
6, the microphone must be collected
I believe that many users who like K songs at home will encounter it. If the microphone is too close to the speaker or points to the speaker, it will form a whistle of voice feedback. Don’t underestimate this, if the situation is serious. It may burn the high-pitched parts of our speakers.
When the speaker is in use, in addition to paying attention to the direction of the microphone, it is also necessary to pay attention to keep away from the magnetic field, such as mobile phones and monitors, and the speakers can not be placed too close, in this case, signal interference will generate noise. So, friends must pay attention to this when using the speakers.
7, home theater audio other use taboo
For the time being, in general audio enthusiasts, there are some misunderstandings in use that should be avoided.
One: Put the equipment in the cabinet. Some people put the equipment into the customized cabinet for decoration and protection. This will cause the sound to be turbid due to the latent vibration caused by the space inside the cabinet. The equipment such as power amplifiers are not easy to overheat and age due to insufficient circulating air. If you put the speaker into the wall, the sound will become hard.
Two: stacking equipment. Many people like to put the players such as DVD players, amplifiers, tuners, and digital-to-analog converters on top of each other, which will cause mutual interference. Especially, the radium camera and the power amplifier have serious interference, which will make the tone hard and suppressive. The correct approach is to place the equipment on an audio frame designed by the factory.
Three: The power plug is positive or negative. The system with positive and negative power plugs has a clear tone and natural smoothness; the positive or negative is inconsistent or uneven, and the tone will be hard and rough.
Four: The wiring is not strong and unclean. If the system sounds dry and hard, one of the reasons may be poor contact, such as poor plug, oxidation of the contact surface, dust or oil stains, etc., so check frequently to keep the contact surface clean.
Five: Carrying equipment with marble or glass. The low density of the marble and the high resonance will affect the sound effect. The density of glass is higher than that of marble, but it is not thick and the resonance is more serious. Granite or granite, especially masonry, can be used with the highest density and ideal carrying equipment, but the thickness is more than 3 cm.
Sixth: The placement of the speakers is “adapted to local conditionsâ€. Some people have other furniture in the room, and the speaker is placed in the position of the furniture. The correct distance should be determined first, then the speaker should be placed 1/3 of the distance between the seat and the opposite wall. The distance between the speakers is 0.7 times the distance between the listener and the speaker. The height is equal to the listener's ear and the tweeter. .
Seven: The wiring is not handled properly. Do not tie the power cable to the signal cable when handling the wiring, because the AC power will affect the signal; the signal cable or the speaker cable can not be tied, otherwise it will affect the tone; the signal cable or speaker cable can be shortened if it is too long. Many signal lines are directional, don't make a mistake.
Eight: Take it for granted. In addition to sound, sound insulation, more important is the processing of sound reflection, refraction, which needs to consider the size, size, firmness, use of materials, etc. If you are not a connoisseur, even if the decoration of the room is luxurious and beautiful, the sound is difficult to achieve. best effect.
8, the importance of the sound source
Having said that, home theater audio equipment is no better, no good sound source is no good. Although the compression formats such as MP3, WMA, and ATRAC 3 PLUS are flying all over the place, this is a lossy compression format. The capacity of the discs storing such music may be large, but many of the elements in the sound are discarded when compressed. . Since the desktop audio is generally used to create a musical background in a small space such as a bedroom and a kitchen, we recommend that consumers who use desktop audio can try to listen to classical music, light music, or listen to FM radio. It is also good to play high-quality and large-capacity MD. . Consumers such as off-site recordings, such as popular music, which have low quality requirements for restoration, can selectively use the compression format. More fresh and fun home theater information, please pay attention to home theater network http:// (WeChat: cnhifi), the country's most influential home theater audio player interactive media website.
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