[Home Theater Network HDAV.com.cn] Although the speaker placement varies from person to person, it must follow certain rules. For the sake of understanding, we may wish to indicate the orientation by the clock plane (Fig. 1). If the user's seat (the “Emperor's Positionâ€) is the center of the clock, the front is at 12 o'clock and the rear is at 6 o'clock. The left side is at 9 o'clock and the right is at 3 o'clock. Taking an audio-visual room of about 9 square meters as an example, the owner of the room chose a 7.1-channel speaker to build a system suitable for THX sound. The positions of the two are shown in Figure 2. Below, the author explains the general idea of ​​the position. Center speaker and front left/right surround speakers As shown in Figure 3, the center speaker is placed at 12 o'clock, and the front left/right surround speakers are placed at 11 o'clock and 1 o'clock respectively. The front left/right surround speakers should be composed with the "Emperor". 45 ° angle. The center speaker and the front left/right surround speakers are mounted at the same height as possible, and are flush with the height of the ear when the user is sitting, in order to obtain the best sound field and correct vocal dialogue positioning. If there is a TV or the like at this height that hinders the placement of the center speaker, it can be placed up or down at a distance of no more than 0.3 m, and then the radiation direction of the speaker can be adjusted. There is a need to correct a newcomer's mistakes. It is not right to place the center speakers of the front left/right surround speakers on a pair of parallel lines. The correct way is that the tweeters of the center speaker and the front left/right surround speakers should be aimed directly at the user's head. Left/right surround speakers The left/right surround speakers are at 9 o'clock and 3 o'clock respectively (Fig. 4). They are located on both sides of the "Emperor's Position" and are 1 to 3 m apart. The two speakers are facing each other. How high is the surround speaker need to hang? In fact, the height of the surround speaker is not too strict, but it must be noted that the sound of the surround speaker should be more diffusive than the directional, in order to create a rich surround atmosphere. According to experience, if you use a common single-pole bookshelf as a surround speaker, the user sitting on the “Emperor Position†will prevail. The horizontal plane of the ear is about 30 degrees obliquely, which is the best height of the surround tweeter. The ground is between 1.8 and 2.2 meters. Since this is the edge of the diffusing corner of the dome tweeter, if the surround speaker is placed above this height, the high frequency loss is serious, many details are not heard, and the sense of space becomes narrow; if it is placed below this height, it will be high. The frequency of the direct sound is too strong and the sound field can not be opened, making people feel very unnatural. Rear left/right surround speaker The rear left/right surround speakers are at 7 o'clock and 5 o'clock respectively (Fig. 5). The sounding surface of the speaker is facing straight ahead, and the distance to the "Emperor" should not exceed the distance from the left and right surround speakers to the user's head. In addition, the angle between the rear left/right surround speakers and the "Emperor" is preferably around 60°. Subwoofer For subwoofers (commonly known as "subwoofers"), you should not rush to position, you need to set the low-frequency crossover point of the AV amplifier. The 7.1-channel speakers used in this example are THX-certified, so all the crossover points need to be set at 80Hz. As for other subwoofers, you must set the crossover point for each channel based on the low frequency response of each speaker. Once the crossover point is set, the subwoofer can be placed. Since the low frequency below 80 Hz is almost non-directional, in theory, the subwoofer can be placed anywhere in the room at will. After continuous audition, the subwoofer in this example was placed on the right side of the "Emperor", which is 2 o'clock. 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. Note: This article is transferred from Solan. The article is an independent view of the author and does not represent the position of the home theater network. Sport Smart Watch Sport Smart Watch,Sport Smartwatch,Smartwatch Sport,Smartwatch For Running everyone enjoys luck , https://www.eeluckwatch.com
