Stereo Speaker System




About: I'm a soon to be Combat Engineer, and I love building random stuff from Radio Shack parts and everyday items.

I have seen the instructables on making a single speaker, but I'm showing you how I made a stereo version. This is my first instructable, so constructive and positive feedback is welcomed.

Items Needed:

1 pair of wire cutters
1 pair of scissors
1 razor blade
1 nail
1 hammer
1 roll of electrical tape
1 heat source
1 gameboy advance case
1 long strand of speaker wire*
2 speakers
4 squares of foam

*The speaker wire I used was found at a random parts shop. I'm not sure what it's called, but it looks like the cord part of earbud-type headphones, but double the wire, all converging into one connection piece that plugs into the headphone jack.

Step 1: Create the Wire Holes

Hammer two holes in the back of the gameboy case and string the wire through. If the hole is too small, stick the nail halfway through and rotate the hole bigger. The case is aluminum, and is reletively easy to hammer through.

Step 2: Create Speaker Holes

Now that you have the wires in the back, you have to make holes in the plastic lid of the case so you can hear the music better. At first, I tried heating the nail with a lighter, but it worked less effectively as I first thought, so instead I used a 45watt soldering iron. Use what you feel comfortable with.

If you do use a soldering iron like I did, wait for it to heat up, then poke through firm at first, then when the plastic starts to melt, loosen the pressure on the plastic, and it'll poke through slowly. Run the tip through the hole a few times to make sure it stays open enough. Dont't fully remove the tip until the hole is to your liking. Repeat as many times as deemed fit to allow a good sound. I made 10 holes.

After the plastic cools, you're left with an ugly looking puckered effect from the heat. Use a razorblade to cut the extra plastic around the holes inside and out of the case until you have holes and not burnt plastic around the holes.

Step 3: Create Speaker Holders

Take the foam squares and fit them inside the case, cutting if needed, to fit the case, allowing room for the lid to close and clasp shut, as well as a small spot for wire relief later on.

Cut two holes, not divits, to allow room for the back part of the speakers to sit, making sure they are spaced to allow the lid to close, and the speakers don't touch. The speakers themselves are about the same diamiter around as a soda can.

Once you have two holes, pull the wires on the speakers through the holes, folding them back a bit, and push the speakers in enough to sit. Repeat with the second speaker.

Step 4: Connect the Wires

It's self explanitory. Connect the red to red and black to black for both speakers. Wrap small pieces of electrical tape around all exposed wire and curl into the case.

*It's come to my attention that there may be some confusion as to the type of wire needed. Some have asked for elaboration into the connection of the wires. The wire I used was not the same as the .99cent earbud headphones or wire with red/green/gold inside. It was a wire that had two red/black wires that had the usual headphone jack. I'm not quite sure what this type of wire is called, so anyone who knows, please tell me so I can post it.

Step 5: Finish Up

With the wires connected, the speakers inside the foam, and the foam inside the case, close the lid of the case and plug into whatever will accept the standard headphone. Since the housing is a Gameboy Advance case, most likely found at your local video game store, you can attach a strap to it and carry it around. It's a bit louder than the single speaker systems I've seen, and it's stereo.




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    8 Discussions


    11 years ago on Introduction

    Nice job. It may not be true stereo or have the best sound, but the presentation is one of the best I have seen on this site. It shows that you put work into the enclosure rather than using the easiest thing you could find.


    12 years ago on Step 4

    wire is wire, only way to call it something is on its thickness. a very tiny single wire can carry plenty of electricity for the speaker. The reason why you want a thicker one is so it doesn't break or lasts through all the wear and tear. The exception to this is if you have a subwoofer or want good quality low frequency response, then you have to use thick wire so there is low impeadance in the wire so maximum bass can be heard.


    12 years ago

    Since the speakers are so close together, the choice of which speaker connects to the Left and which to the Right is moot. There would be no stereo effect. Although, by having both speakers, all of the intended music is presented. To get true stereo, you'd need to separate the speakers from each other.

    Ace Benedict

    12 years ago

    As I said before, this was my first instructable, so I'm interested in knowing how well I did, what could be changed, what you think, and what you would have done differently.

    4 replies
    bigpineconeAce Benedict

    Reply 12 years ago

    well the problem here is that you connected the red and black wires, so they'll both be playing the same thing. if you look at the headphone wires there's a green, red, and gold one. the gold one is common, it isn't hard to figure it out from there


    Reply 12 years ago

    I think you need to elaborate on how to connect the speakers to the speaker wires. What I usually do is get 99 cent earbuds from Wal-Mart, cut the buds off and expose the two wires for each ear bud, and connect those two wires to the speakers. Its just an easier way to go about doing it.

    Ace BenedictBrennn10

    Reply 12 years ago

    Gotcha. I went to a random parts store and picked up some wire that I honestly don't know what to call, but it only looks like the earbud wires. It's a red/black wire set up, but has two reds and two blacks, and still plugs into a earphone jack. It doesn't have the usual look as the inside of the .99cent headphones with the red/green/gold wires. If someone knows what this type of wire this is called I can edit the 'ingredients' on the first page.

    Brennn10Ace Benedict

    Reply 12 years ago

    The name is perfectly fine. When I made my amps in electronics class, I did it from scratch with hookup wire, and a speaker adapter. (The piece that connects into the music device) The way you did it is fine, and what I did is just attach the ear bud wires to the speakers. Ear buds are speakers as well, so th wires attach in the same places.