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The idea of ​​creating a six-channel speaker system has existed for a long time. Having set a goal, I studied in detail the characteristics of the sound card and found out that it supports as many as 7 channels of sound. Since I am well versed in electrical circuits, I decided to create 5.1 speakers for the computer. To do this, an old Chinese home theater was used, which was connected to a computer in dual-channel PC mode.

Six channel sound amplifier


To make a high-quality sound, I needed: a screwdriver, wire cutters and a soldering iron from the tools, and a wire, an speaker cable with RCA connectors, and two-channel adapters from the material.

Six channel sound amplifier


Very important! Be sure to turn off any electrical equipment from the network before you disassemble it, so as not to get an electric shock.

Six channel sound amplifier


Having disconnected the wires, I proceeded to remove the top cover to look at the sound amplifiers. It was necessary to take a look at whether it was possible to realize what was conceived in life. And this is what opened to my eyes:

Six channel sound amplifier


I will be expressed in the simplest possible language for those who do not understand this, but thought interested him. Photo 4 shows the entire home theater device. Most of its components I did not need. An interesting detail is the board in the upper left part of photo 4. This is the block of amplifiers responsible for 5.1 surround sound. I needed to bring six linear sound card signals to this unit. Fortunately, there is a connector on the board with inscriptions of all channels, to which signals from the player are suitable.

Six channel sound amplifier


I figured it out, but now another question has arisen. How to make sure to carefully connect six RCA cables from a computer. And here the linear inputs of the cinema will help me, of which there were just a lot.

Six channel sound amplifier


Of all the connectors, I chose the most suitable ones, having previously scratched the number of the future entrance near them. Then they were completely disconnected from the board so that there was no circuit in the future:

Six channel sound amplifier


Now the most crucial moment was coming: to solder the wire to each connector and connect it to the amplifier block.

Six channel sound amplifier

Six channel sound amplifier

Six channel sound amplifier


I connected the soldered wires in the connector coming from the amplifiers according to the color of the channel, I also had to supply the power for the amplifiers with a green wire

Six channel sound amplifier


That was all the work. As you can see in photo 12, RCA cables are suitable for the player, which are connected with a white wire to the connector coming from the amplifiers:

Six channel sound amplifier


The computer involved all three outputs of the sound card, transmitting two sound channels: two front, two rear, center and subwoofer. Such a little thing helped to split the output into two channels:

Six channel sound amplifier


From the back of the computer everything looks like this:

Six channel sound amplifier


The work was more than satisfied. The sound quality is not comparable to the previous one.

Six channel sound amplifier
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Comments (10)
  1. Veent
    #1 Veent Guests May 10, 2013 01:49
    0
    There are by chance not six tda7294 stand?
  2. Nikolai
    #2 Nikolai Guests October 21, 2013 17:53
    0
    And where are the speakers connected to the speaker output?
  3. MAXIMUS
    #3 MAXIMUS Guests January 27, 2014 19:46
    0
    Not 7, but 8 outputs, do not forget about the output of the bass woofer!
  4. vagrant
    #4 vagrant Guests January 25, 2015 17:57
    0
    Hello! I am looking for the author of the above work. Thanks to this photo report, I decided to remake my cinema outdated. I did but it didn’t really work out. It seems to work like an amplifier ..... Respond help ....
  5. Alexander
    #5 Alexander Guests February 25, 2015 17:39
    3
    Quote: vagrant
    Hello! I am looking for the author of the above work. Thanks to this photo report, I decided to remake my cinema outdated. I did it but it didn’t really work out. It seems to work like an amplifier ..... Respond help ....


    Hello, you found the author of the article
  6. Shamil
    #6 Shamil Guests October 10, 2015 18:11
    0
    Hello.
    Could you tell us more about soldering wires, what to solder with? What is the green wire? And where to connect it?
    Thank you in advance.
  7. Max
    #7 Max Guests January 4, 2016 16:21
    1
    [b] alexander [/ b],
    Greetings! Is it possible to write to the post office? I need help in remaking the amplifier for a computer, the same principle as in your article, only now I have not signed the outputs. Thank you in advance.
  8. Evgeniy
    #8 Evgeniy Guests March 17, 2016 21:18
    0
    Good afternoon, can you tell me there is an opportunity to redo this?
  9. EnneKen_T
    #9 EnneKen_T Guests May 30, 2017 22:56
    0
    The author of the article, if you still come to this page - be kind, give me your mail!
    I want to remake a similar dk, there are a couple of small questions regarding nutrition and
    linear connection to the input of the amplifier.
  10. Guest Dmitry
    #10 Guest Dmitry Guests June 4, 2019 3:35 p.m.
    0
    The author, such connections are made by a shielded wire ... And the guys who will do it like you. Then they will write why the noise why phonite

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