I did not consider the cloth audio cable during the decoration, so now I have to choose the wireless that does not toss.
After tangling for a long time between the echo wall and true surround, I finally chose physical 5.1.
As a fungus, I’ve burned it here, without tangling with Dolby Atmos.

I bought the Bank of America. After all, it is cheap, and the National Bank has only one year warranty. The after-sales process is also more troublesome. You have to send your own repairs.
The boxes were really big and heavy, and they were about to break on the fourth floor.

 Before buying, the intention was to place the rear satellite box behind the sofa, so that the sofa back blocked the audio cable. But I searched a lot of buyer shows on the Internet. They were either embedded ceiling mounts, wall mounts, or floor stands on the side of the sofa. None of them were attached to the side of the sofa.
I took a picture of the installation effect and showed you how the rear speaker rests on the sofa back.

In order to be stable, the 3M foam tape is actually attached to the wall frame. If you are not afraid of the ugly line, you can actually attach it a little higher.

The installation process is relatively simple compared to other surround speakers, and the front and center are almost finished when connected to the host.
The subwoofer has only one power cord.
The rear wireless receiver module can be connected to the power supply. I hid them in the Xiaomi power storage box, which was just full and placed on the side of the sofa against the wall.

The satellite boxes are really small, and it is completely impossible to see that they are worth a dog’s audio system. It has little effect on the original layout of the living room, and you may not necessarily notice it if you don’t look closely. 

There are already a bunch of Bose products such as c5 and revolve in the home. At the beginning of listening to the 650, there was no such amazing sound field with a small size.
Through ARC connection, the CEC control device is very convenient. The 650 remote control can be used to control the three ends of the TV, the body, and the box. The audio on and off are also linked to the TV. There is no need for the TV’s native remote control. I closed the CEC of the box, and the box never shuts down, so I don’t have to watch ads.
Disadvantages This remote control is really big and heavy. It has 4 sections and 5 numbers. There are many buttons.
The unexpected benefit is that the cables of the box, game console, HTPC, and IPTV are all connected to the audio. The TV is connected to only one cable, and the surrounding of the TV looks much cleaner. Underneath the TV, all lines were very ugly.  

If the center speaker is not on the wall, if the TV cabinet is not multi-layered, it is not suitable to be placed with the audio host, and it will grab the position.
Here I put the host on the side shelf. The remote control is a radio frequency signal. Don’t worry about the problem of inaccuracy.

When Win10 HTPC is connected, the default output is stereo, which needs to be manually modified to 5.1 surround and set the satellite box as a non-full range speaker, otherwise only the front will sound.
When watching a movie, potplayer can set dts and other straight out, and give it to the audio decoder.
By the way, I found that many of the online Blu-ray movies on demand on the Xiaomi box are fake surround.
Steam streaming can also enjoy physical surrounds, playing with a handle in the living room is very cool.
When playing on a computer, you can only listen to C5’s virtual 5.1. In fact, you can’t feel the sound source behind it. The Witcher 3 I decided to use the handle in the living room.

The biggest pitfall encountered is that as long as the telecommunications IPTV Huawei box is connected to the 650 host and stands by, it will cause the ARC and CEC of the host, TV and other equipment to completely fail. It is necessary to shield the 13-pin (4th pin from right) of the HDMI cable Pick off.
I flattened this pin of the HDMI cable directly.
Taobao sells shielded 13-pin adapters, which is quite popular. The price of 18 yuan is now doubled. I still choose to break the needle, anyway, the IPTV supporting HDMI cable is not worth it.
It took me 4 hours to toss this problem, and later a search on the Internet found that it was a common phenomenon.

In general, 650 is recommended to people like me who have no wiring and no higher pursuit of sound, and directly make the living room of the broken house to the extreme, otherwise this budget should be able to set a panoramic sound.