For the Spring Festival holiday, since it is impossible to go abroad as a circle of friends, consider how to upgrade the home theater that has been used for many years. It is also considered as a new year of the New Year.
What, can spend 250 yuan can be upgraded to the most effective, most advanced panoramic sound theater, you think you are all two hundred and five ah? Don't worry, spending 250, of course, means purchasing a few accessories on the basis of the existing system and transforming it into a cinema that meets the PA/DTS:X standard.
Saying that this 3D immersive surround sound theater standard (in fact, Dolby Sound and DTS: X) came out, has been strongly sought after by the majority of theater enthusiasts. what is the reason? In fact, we do not blindly follow the trend of popular pursuit, but to support the above two formats of cinema, the effect is indeed higher than the ordinary 5.1/7.1 home theater is more than one level.
Xiaogan who is in the audio industry naturally has a deep understanding of this. The company's audio-visual room, each audio show, can listen to a variety of speakers of various brands of panoramic sound theater. Maybe this caused some aesthetic fatigue, and the living room of the family still stays in the stage of 7.1 and has not moved.
"I may have used a fake theater." Did value-friends ask themselves more than once?
Obviously, with the latest support for DTS:X decoding, new sound amplifiers with panoramic sound, how does the sound out of the old amplifier have no difference?
The reason is probably that your horn position is still the traditional 5.1/7.1 mode, lacking the most critical sky channel of 3D immersive sound effects.
Closer to home, in fact, for an ordinary living room home theater, to realize the leap from ordinary 5.1/7.1 to panoramic sound theater, the biggest obstacle is not the upgrading of equipment, but how you withstand the pressure of home LDs. Only 4 speakers hang from the ceiling.
Of course, these are not problems for newly renovated value-friends. Only need to bury 2-4 ceiling speakers in the ceiling during the renovation. As shown in the figure below.
Ceiling speakers
Like Yamaha, Swans and other well-respected manufacturers have this type of speaker for sale, affordable, fully meet the demand as an overhead speaker.
Yamaha NS-ICS600 home theater speaker 1880 yuan fixed resistance / ceiling / background music speaker white Jingdong direct link For users with higher quality requirements, you can choose Origin Acoustics, B&W, Klipsch and other European and American brands, of course, the price will be relatively expensive.
D10810-inch three-way ceiling speaker. Kevlar material, adjustable direct links in the middle and high direction 
OA D108
The D108 with the largest caliber of the OA director series unit is called the Big Mac in the ceiling speaker. It uses a unique three-way 10-inch woofer design, and the powerful bass will make you shake the twitch even if it is the main box. Also definitely qualified.
However, it is impossible for most people to redecorate the living room for a theater, or even buy a new one. Then came the small fever to come out and transform a traditional 7.1 home theater into a 5.1.2 panoramic sound/DTS:X theater.
First of all popularize the basic knowledge about speaker placement, incorrect positioning, will make you feel "use false theater."
Xiaochao classroom started:
* The 5.1 speaker configuration is generally the basic configuration for a surround sound home theater. Let's take an explanation of Dolby’s official recommended placement method.
5.1 layout
The above is a top view of the loudspeaker configuration of the 5.1 configuration. The subwoofer can be placed in any position of the room as long as it does not affect people's movement. Friends with a certain amount of acoustic knowledge can gain better low-frequency effects by trying different positions. The middle point of the figure is 0 degree origin, and the angle between the left and right speakers is between 22 and 30 degrees. The surround speakers can be placed on the edge of the sofa (90 degrees with the center), or the diagonal rear of the sofa (with the center The maximum angle is 110 degrees.)
* If the sofa is a certain distance from the back wall, then you can consider the 7.1 configuration to get a better rear sound field effect.
7.1 layout
The figure above is a typical 7.1 position, you can see it is added on the basis of 5.1 2 back surround, with the central angle of 135 ~ 150 degrees.
* The next step is the layout of the Dolby Panorama Cinema, starting with the 5.1.2, which is the most popular.
5.1.2 Layout
The figure above is a top view of the 5.1.2 layout. The layout of 5.1 remains unchanged (the position around the figure has changed, and it is estimated that it is to open the distance from the ceiling speakers. The actual and neutral angles do not change). On the ceiling, near the listening position, a pair of sky channels (marked with number 6) were installed.
5.1.2, Sky Channels and People's Side Views
The angle between the sky channel and the position of the person listening to the position. The requirement for placement is not so strict, it can be from the front of the person, about 65 degrees from the beginning of the person, to the rear of the person, about 100 degrees, is a suitable place.
In addition, 5.1.2 channel layout can also be used in the form of reflective speakers, as shown below.
Reflective speaker
By placing a special reflective speaker on the left and right main speakers, a sound is emitted to the ceiling, and then reflected to the human ear, and the sky sound is virtually generated. This has the advantage of eliminating the need to install overhead speakers and eliminating the need for installation and wiring, making it the easiest way to implement panoramic sound. However, the effect is not as good as the speaker actually installed on the top of the head. Therefore, this upgrade of Jumbo also ignores this kind of compromise.
Onkyo/ Onkyo SKH-410 1080 yuan Dolby Speaker Speaker Reflector Speaker Sound Lynx Select Direct Link This should be the cheapest reflective Dolby PA speaker on the market. According to some user tests, the use of an ordinary speaker can also be used as a reflection horn, and the actual effect cannot be confirmed. Major brands such as KEF and Klipsh also have similar products.
For more ways to set up, please refer to Dolby's official website. Up to 9.1.6, work hard, show up
Since it was decided to upgrade the existing system to 5.1.2, it was necessary to purchase some retrofit materials based on the existing system.
Existing theater system:
Speakers: JBL Control 1Xtreme X 6, Mid-Range JBL CMCC, Subwoofer Elemental Designs 18"
The basic products are old products many years ago. We don't put links here.
Amplifier: Onkyo TX-RZ800
Pre-sale Onkyo/ Onkyo TX-RZ81011800 Yuan Panorama Home 7.2 Channel Amplifier THX Certification Network Blue Sky Cat Select Direct Link The RZ810's previous-generation version was also the first generation to support DTS:X decoding. After firmware upgrades, it has been able to support DTS:X and dual sound decoding.
The upgrade is mainly related to the Control 1 box.
JBL Control 1
Although JBL’s civilian products have been increasingly used in recent years. But this little thing is genuine JBL blood lineage. Its scientific name is "Personal Monitor Speaker System" and personal monitor speakers. The essence of the design philosophy is the "long-term, durable, cheap, buzzing, versatile speaker system." It has been 30 years since the mid-1980s, but whether it is the straightforward sound of the monitor or its appearance, it does not make people feel out of date.
When you buy these speakers, it is still Control 1Xtreme. At present, this model is rare in the market. The more common models now are Control 1, Control One, Control 1 Pro, or the newly designed Control X.
JBL control 1JBL Control 1 series Taobao search s.taobao.com direct link The common point of these models is that they come with original racks that can be wall mounted or ceiling mounted.
Therefore, this series of boxes can be used as ordinary bookshelf boxes, buy a tripod to support it, or directly wall-mounted installation, with a strong installation flexibility.
This is not, some time ago the United States Amazon's Prime members to buy Control 1 Pro discount, remembering a pair of 82 US dollars, many friends bought a lot of back to the group theater.
JBL Control 1 Pro106.6 High Performance 150-Watt Miniature Studio Monitor Speaker (Pair, Black) US Amazon Direct Links If you buy at a domestic treasure, be aware that there may be trouble with fake goods and you need to find a reliable business. In general, a pair of 1000 is more reliable, one hundred or two hundred pairs of ... what do you say? Estimated to buy this is this:
JIBIL
Do you see it clearly? This is a fake replacement of JIBIL.
Amazon also has original matching racks for sale, a pair of 21 dollars.
JBL MTC-2P $21 Wall Mount Kit for Control 2P US Amazon Direct Links Because the small fire Control 1Xtreme does not come with its own pylons, looking at the domestic original to sell 200 original pylons. With the principle of mei (qian), Xiaoyao naturally started searching for alternatives on Taobao. Hard work pays off, a small hanger of 5.5 yuan, after a simple transformation can fully meet the needs. Taobao buys links to keep burning and is interested in searching on its own.
Remove the iron piece on the side of the speaker and unscrew the triangular screw on the picture above. You can use the top hole to secure our Control 1 speaker.
Rear fixing screw hole
The fixing screw hole behind the Control 1 Series is a very good design. However, note that this screw hole is not a national standard. Its specification is 1/4-20 UNC US standard thread. So still must be on the universal x treasure
0.21 yuan a screw, bought eight, plus eight pads (very necessary), add up to no expensive shipping... Finally received before the Spring Festival.
Because of the ceiling, the original speaker cable is certainly not long enough. It also plans to pre-embed several lines for future upgrades. So we bought a 50-meter, 100-cell speaker cable, considering that it is used around the box, so No thick line was selected, enough to use. With some coupons recommended by Auntie, it took more than 100 years.
Akihabara (CHOSEAL) 165 speaker cable speaker line enthusiast-enhanced shield anti-jamming oxygen-free copper 100 core 50 meters QS2241T50S Jingdong direct link The speaker bracket fixed to the wall, of course, expansion tube, Taobao 6.8 yuan a set of 25, cheap and big bowl.
Nylon expansion tube
The last necessary material is the trunking, which allows the ceiling line to be less visible, and it is also a great invention for organizing existing wires.
Trunking
Plastic trough can be, remember to buy with adhesive, especially convenient to use, turn the joints also remember to buy. Spend 100 yuan.
So the total cost of this upgrade is about 250 yuan
After the materials are in place, the work will begin soon and the image of the SONOS 5.1 system will be used to borrow the original system.
# Chief Living Home Theater Future Forms? - Sonos 5.1 Wireless Home Theater Review 0. Introduction 1. Branding 2. Unpacking 3. Real Scene Placement 4. Connectivity and Initial Setup 5. TV Usage Scenario-TV-Movie-Gaming 6. Theater Usage Scenario-Theater Performance Comparison-Decoding Compatibility - Instrument Testing 7. Music Usage Scenarios 8. Q&A and Summing Up Dual 11 Preview: SonosPLAY: 5 Next Generation Wireless Smart Audio Dual 11 Preview: SonosPLAY:...z008| Likes 0 Comments 86 Favourites 330 View Details 
The first three before the transformation of the theater
After the transformation of the former theater four
The first three rear four layouts share a three-pair stand (Sonos Play:1 should be Control 1). My task is to put four of them on the wall, two on the ceiling, and one in the center.
If a worker wants to do good, he must first sharpen his tools. With a handful of tools, you can do more with less. The recommended tools for firing are:
Deep Dawei handheld high-precision laser range finder 118 yuan electronic ruler area measurement 40 meters green original factory standard Jingdong direct link Helps you more accurate measurement positioning.
Bosch Bosch power tools, punch something, I always love to use it.
Aluminum alloy step ladder, operation safety first.
A vacuum cleaner, if someone is a helper, sucks while perforating, and dust does not drift.
When they started, they bore holes in the wall and this kind of rough work, and there was a piece of trunking that was too busy. Look at the finished photograph.
Three channels in front of the wall
Surround and Sky Channels
At last, let's add the panorama.
Summary of issues: 1. Why not upgrade to 7.1.2 or even 7.1.4 instead of 7.1, but instead upgrade to 5.1.2 which looks like a degraded layout?
First of all, for the living room party, the layout of 5.1 is the most common, because generally the sofa is placed against the wall, and there is very little willingness to pull the seat away from the wall as a small fire. Therefore, there are generally no conditions for placing 4 surround speakers. Because it is necessary to place all the surrounds on the wall, the small fire can only give up the surround speakers on both sides and change to 5.1. Second, most of the A/V amplifiers on the market support the 7.1 or 5.1.2 format, including the TX-RZ800 that Xiaoyao uses. If you want to upgrade to a more advanced 5.1.4 or 7.1.2, 7.1.4, it is imperative to upgrade the amplifier to the flagship or flagship, and to purchase more speakers, the budget does not allow.
The actual effect has been heard. This configuration of 5.1.2 has been greatly improved over 7.1. After all, it is the physical sky channel plus more advanced surround sound algorithms.
2. What is the difference between the actual effect and 5.1 or 7.1 after adding two sky channels?
The key issue is that here, Xiaozhuo will not come to lengthy discussions on the new panoramic sound and the advanced nature of the DTS:X format, or the phrase, using the ear to receive goods and hearing to be true.
Here once again reminded valued friends, do not use online video to test the effect, these are compressed and re-compressed sound, even if it is millions of systems, fed it so garbage source, but also can not have a good effect .
Xiaoyao strongly recommends 3 demos, each with a few hundred megabytes. The capacity is not large, and everyone can download it.
Locked Up
The first is Locked Up (2) from DTS 2015, which tells the dramatic story of two storks and one fly. The reason for choosing this section is that this video provides two different audio track formats, namely DTS-HD 7.1 and DTS:X. If the picture is exactly the same, if the difference in sound effects can be easily discerned, then the system has reached a certain level.
The download address is about 1 and a half points of the clip, and each segment has a capacity of about 400MB.
Then there is the movie Unbroken (indestructible) at the beginning of the air battle scene. The sound effects of this scene are very rich, the details are numerous, and the sense of positioning is also very accurate. The audio track is a panoramic sound format. Xiaoyao does not provide test footage for non-panorama sound formats. Interested valuers can prepare for comparison.
Download address, test piece for a few minutes, capacity is about 600 MB.
3. My ceiling is ceiling, how do I fix the pylon?
Generally behind the ceiling, there will be wood keels. The wooden keel is directly fixed to the ceiling and is strong enough. Use a suitable length of wood screw to attach the hanger directly to the wooden keel. If your home is a light steel keel. . . Try to use the increased layout before and after use, without the need to work on the ceiling.
Increase before and after
Well, this upgrade is here. Here is the next step in the idea of ​​a small burn: The simple acoustic treatment of the wall will increase the effect of the mid-high sound. If the amplifier can be upgraded, then add two pre-emphasis speakers to 5.1.4 (the wire is already in place).
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