For the home theater, all of these audio-visual equipments are not a simple combination and arrangement, but an audio-visual project, which is the overall layout of the audio-visual space and the comprehensive effect system engineering of each sound system. Putting a home theater in the living room requires both the entire home theater and the home environment to match each other. To make the most of these devices, you must first consider the wiring of the theater. It is best to have a good idea before the house is renovated. It is. So what do you need to pay attention to in home theater wiring? And how should we do it according to different environments? Here will solve these mysteries for everyone.
Basic articles: There are many friends who have such experiences. When they go to a friend's house for a party, they find that other people's home theaters are not only effective, but also well matched with home decoration. Traces of the connection. Looking back at your home theater, there are many connecting lines behind the sound, which greatly affects the beauty of the entire theater. What is even more incredible is that although the whole set of equipment is more upscale than the friends, but the effect is not satisfactory, is it the fake and shoddy products bought? Of course not, this is because the consequences of wiring are not taken seriously, and how important wiring is to a home theater.
For cinema wiring, the best time is before the renovation. According to different living room environments, it is expected to complete the installation of audio and video equipment, design the position of the speaker, select the appropriate wire, conceal the power socket, pre-set the installation hole and so on. When the decoration is completed, the wire is buried, which is what we usually call “pre-buriedâ€. After the decoration, the speaker can be purchased and arranged according to the previous design, then the whole wiring is more convenient and perfect. However, not every household will consider it so thoughtfully. Most families have already renovated their home theaters. It is impossible to renovate them. For such families, the problem that needs to be solved is: how to Some devices work best?
The first problem that cinema wiring needs to solve first is how to design the position of the speaker according to the actual situation of the living room or any room where the theater is placed, in order to exert the best effect. The next step is to design the location of the speaker, determine the location of the wiring, the direction and exit of the line, how many wires are routed and the length of the wire used. Once again, it is to decide what standard wire to lay according to the different equipment and equipment that you plan to configure. Here are some explanations for these issues.
Environment articles: In order to make the best performance of the sound according to local conditions, space conditions, equipment matching, speaker placement and user fine-tuning are all indispensable. The speaker placement is not a cost, but it can also make the sound play the best effect. Some people say that the speaker placement in the home theater accounted for 50% of the importance, I think it is not too much, as long as everyone The experiment will be slowly realized. Some theater enthusiasts know that the sound quality is closely related to the space, the speaker placement, and the listening position. The key is to find the best balance between the three interactions. For the average consumer, it is very difficult to adjust the subtle differences, we will introduce some practical methods. One thing to keep in mind is that the speaker position is established first, and then the wiring is determined.
The main speaker position, the most common is the 317 ratio, which divides the length of the room into three equal parts, the speaker is placed in the length of one third, and the interval between the two speakers is 0.7 of the length of the room. Double, suitable for a large size, uniform proportion of space, can get balanced sound and wide sound field. The second is the ratio of three to three, the length of the room is divided into three equal parts, the width is also divided into three equal parts, the speaker is placed at the first equal point of the length and width, this method and the first one The similarity is that the difference between the two main speakers is narrow, and you can choose according to the different conditions of your living room. These two methods are our first choice when wiring. Most of the family's living rooms are suitable, but there are also many families whose living room layout is special, or the theater is arranged in the audio-visual room. The following methods can be used.
The positioning of the main speaker directly affects the performance of the sound quality. For the special living room space, I recommend using the screw hole pendulum method to place the main speaker between one-third and one-half of the length of the room. Against the wall, the inward projection angle of the two speakers is greater than 45°. The listening position should be between 0.5 and 1 meter after the intersection of the projected cross lines. If the living room has a small space, or a theater is installed in the audio-visual room, you can use the method of placing an equilateral triangle. The main speaker should be at least 1 meter away from the back wall, and the main wall should be more than 0.5 meters. The two main speakers Forming an equilateral triangle with the listening position, the inward projection angle of the speaker is greater than 45°, and the formed equilateral triangle can be large or small, and everyone can adjust according to the difference in space.
It can be seen that different cinema environments have different requirements for the placement of the speakers. It can also be seen that many consumers are wrong in the way of wiring in different spaces. After the speaker is set up, we can determine where the opening of the line should be, and what the line should look like. The next step is the wiring. According to the different line types, the wires laid out in the theater can be divided into three major categories: video cable, audio cable and speaker cable. Plus the power cable, the following will be classified.
Speaker cable: The heavyweight speaker cable is the top priority of cinema wiring. In general, the speakers in the home theater are all in 5.1 channel mode. Several speakers are placed down, and the line is rather messy. Moreover, if the living room or the audio-visual room is large enough, it is equipped with more professional equipment, and even some families start to arrange 7.1 sounds. In the cinema, the layout of the speaker cable is more complicated. When the pre-embedded line of room decoration is carried out, the selection of the wire is wrong, and the placement position is unscientific, which will affect the final sound effect.
The main speaker as the main body of the theater, the importance and method of placement, and the principle of wiring have been said before, and will not be repeated here. Below we highlight several other speakers. Most home amplifiers and disc players are located underneath the TV and are equipped with floor or bookshelf speakers as the main speakers, so the center speaker cable can be placed when the audio is installed. If the amplifier and the disc player are separated from the TV. Then, according to the needs, the center line should be arranged. For this layout, the audio and video lines need to be buried in advance, and the connection between the disc player and the TV, the power amplifier and the TV should be pre-buried. The low speaker has no directivity due to the bass. It can be directly connected to the power line by the side of the amplifier. If the distance is far away, you need to lay the dark line according to the situation.
Next is the surround speakers, the 5.1-channel theater has two surround speakers, and the 7.1-channel cinema surround speakers rise to four. Regardless of the type of theater, when the speaker is used to play a movie, the main purpose is to reproduce the surround sound effect of the movie, which makes people feel immersive, so the wiring around the speaker is particularly important. The position of the surrounding box is determined according to the specific situation of the sofa wall, and there are two ways.
The first type is wall-mounted, and the surrounding box is hung on both sides of the sofa wall. At this time, it should be noted that the height of the main speaker should be the same as the height of the sitting ear. The surrounding speakers on the wall are higher than the human ear. 60 to 90 cm or so, too high impact effect, too low to easily meet, so the opening height should match when wiring; the second is the floor stand, placed directly on the sides of the sofa, so the wiring opening According to the situation, in short, try to avoid the appearance of the bright line. In order to get the best results, the surround speakers should preferably form a rectangle with the main speakers. Of course, the specific situation should be treated as a trapezoid.
Since the speaker cable is used to connect the amplifier to the speaker, the current signal flowing through the speaker cable is much larger than the video cable and the audio cable. Because the signal amplitude is large, the speaker cable requirements are relatively high, and such cables are often not shielded. The key, the key is to reduce its resistance, choose a large cross-sectional area or stranded wire. Good quality audio cables, mainly gold-plated, silver-plated, oxygen-free copper and other materials. At present, the special line of oxygen-free copper is popular, its conductivity is good, its resistivity is low, and the non-metallic carbon content of the imported line is high, but the price is too expensive. Generally, the popular audio equipment does not need to deliberately pursue the high quality of the wire, as long as the copper core signal line with a larger cross section is used.
Video cable and audio cable video cable generally have AV cable, S terminal cable, color difference cable, VGA cable, DVI cable, HDMI cable, you can choose, considering the current use and future upgrades, as well as the screen effect, I recommend DVI line, HDMI line, these two are digital transmission, HDMI line is the inevitable trend of the development of digital signal interface in the future. The color difference line is the best video line in the analog signal. If the TV does not have DVI and HDMI interface, you can consider it. Consider connecting to the computer, you can also pre-embed a VGA cable.
When laying video cables, there are generally at least three types of lines, including HDMI lines, color lines, and DVI lines. Although the analog line has a feeling of being eliminated in the current digital transmission, the color line is the best in the current analog line, and it supports the HD standard, and there is still much room for development in 5 to 10 years. The VGA cable is a bit of a "chicken rib". The current mainstream graphics cards are equipped with a DVI interface. If you feel uncomfortable, add VGA. Regardless of which video cable is used, it is recommended to open the video cable from the ground or the wall, because video lines such as chromatic aberration and DVI are thick, and exposure to the outside will affect the appearance.
Compared to the speaker cable, the audio cable routing is also relatively simple. The audio cable is used to connect the audio source device and the power amplifier. It is basically unnecessary to consider when wiring, because the audio source device and the power amplifier are usually put together and can be configured later. In terms of wire, there are audio cables, coaxial cables and fiber optic cables. The audio cables are often two, which are divided into two channels, the lotus head; the coaxial cable is used to transmit multi-channel signals, the signal volume is large, the connector and The lines are slightly thicker than the ordinary audio lines; the optical fiber lines are also used to transmit multi-channel signals, which are different from the coaxial transmission carriers, while the latter two lines are generally used to connect DVD players and power amplifiers.
Power supply and precautions The sound effect of the power supply on the theater can not be ignored. Many audiophiles are used to saying that the power supply is the "source of all evils", which shows its importance. After determining the approximate location of the audio-visual equipment, it is necessary to reserve enough wall sockets. If the audio and video power consumption is relatively high, it is necessary to consider pulling a power supply directly from the meter box for its exclusive use, which will effectively reduce the interference of other electrical appliances during its use. If it is a user who has already completed the renovation, try to plug all the power plugs directly into the wall sockets. It is best not to use the power strips. Even if you want to use them, you should choose a higher quality, inferior wiring board for sound quality. The impact is considerable. If you are an enthusiast and the number of outlets is not enough, consider using a dedicated power filter that filters out impurities and noise from the mains.
Finally, remind everyone of the details that need attention when wiring. As we have seen from the front, there are quite a lot of various types of wiring during wiring. To avoid confusion, the wire can be marked when it is embedded, so that the installation is to distinguish which route, which device or which box. Moreover, when embedding the wire, whether it is in the floor planing or grooving on the wall, the wire should be covered with a plastic sleeve or a yellow wax tube instead of being directly sealed with cement.
When many people are pre-buried, the wiring length is calculated according to the actual length of the cable. This leads to the fact that the length of the cable is not enough during the theater installation. Therefore, in general, it needs to be pre-embedded in the amplifier. Leave 50 cm to 1 m, reserve 20 cm around the wall, and leave the bracket around the ground for about 2 meters. It doesn't matter if you leave it a little more. In short, it is prepared.
A. Mixer Beater (s/s)
B. Mixer whisk (s/s)
C. Potato masher
D.550ml measure cup
F. 700ml measure cup
G.350ml chopper
H.700ml Chopper with non-slip base
I. Fine slicer & Julienne Disc, Rough slicer & Julienne Disc, Shred Disc.(For 700ml chopper use only)
K. Wall mounting
L. Bracket
General specifications
Base speed: 2 Detachable shaft: lock & unlock sign
LED light: No Speed setting: 2
Technical specifications
Power: 400W Frequency: 50/60 Hz
Voltage: 220-240V Cord length: 1.2 m
Design specifications
Material body: ABS Surface finishing: injected color
Material rod: Stainless steel Material blade: Stainless steel
Material measure cup & chopper: SAN
Dishwasher attachments: Yes
Approvals
GS/CE/CB/LVD/EMC/ROHS/LFGB/DGCCRF/REACH/ERP
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