[Home Theater Network HDAV.com.cn] Many friends who don't know much about audio are considering installing a home theater during the renovation, but I don't know how to install it. Today, the old snail will explain it briefly. For the sake of simplicity and ease of understanding, there is no long-term discussion and various technical terms involved, and we strive to solve the problem in one sentence.
Ordinary home theaters are mostly in the living room. Many installation and wiring acoustic treatments and other issues are inevitably to make some compromises. Here are some common problems and precautions for installation. Many standards are considered as much as possible, and do not require strict requirements (destroying the home style). Wife will promise? Don't look for me when you beat.)
Take the mainstream 7.1 home theater as an example:
The installation of the center speaker: Wang Wensheng, the center is required to be in the horizontal and vertical center position of the screen, that is, the center position of the projection screen, but many home theaters have no conditions to pass through the sound screen, and can only be attached to the screen as much as possible. Install along the next or lower edge, the height should be as close as possible to the human ear (of course, the height after sitting down), let's set it to a height of 1 meter (don't ask me why, because most of the speaker stand is about this height, if you use the bookshelf If you can do this, don’t be too low or too high. If you are too low, you will feel that people in the movie are lying on the floor...
Main speaker installation: Generally, the height of the first three should be flush (preferably three boxes are also the same model), the height refers to the height of the center speaker mentioned above, and the vertical clamp of the center and two main boxes Do not exceed 10 degrees, the general horizontal position is on both sides of the projection screen, which is the edge position of the screen. Such sound image localization is accurate.
Side surround installation: vertical height can be about 2 meters, if it is dipole surround, please point 0 to the emperor position, if it is direct shot directly to the emperor, the wall frame directly Taobao, it is best to change Angle wall stand.
Surrounding installation: If you strictly follow the various standards, it will involve some calculation formulas, and the installation positions of various sound effects are not the same, so we can simplify the processing, that is, use the "clock method". That is to say, the emperor is likened to the axis of the clock hand, the horizontal installation position around the left and right sides is 9 o'clock and 3 o'clock, and the rear surround position is at 7 o'clock and 5 o'clock, the installation height is The side surrounds the same.
Subwoofer installation: Compared with other speakers, the installation position of the subwoofer (subwoofer) is much more flexible. Here, the old snail should emphasize that the role of the subwoofer is not only to make up for the low frequency of other speakers. It is an independent channel for radiating ultra-low frequency energy. Why is it not sound? The vibration below 80hz can not be the sound, but an energy, it is this kind of energy that can bring us a shocking feeling. That is, everyone said "squatting on the chest, shaking the sofa, blowing the legs...", no subwoofer is not felt.
It is far away, the installation position of the subwoofer is white, it can be any position, because the low frequency is not directional; but it is not, you need to find the best "gun position", that is, the lowest frequency standing wave s position. How to find this location? Professional engineers will use a variety of acoustic measuring instruments, the average household is not necessary, the easiest way: find a person sitting in the emperor, another person constantly moving the subwoofer in the house, Play the familiar low-frequency clips at the same time until you hear a better bass, which is a good shot. 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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