How to Make a Traffic Light Subwoofer.

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Introduction: How to Make a Traffic Light Subwoofer.

Please DONT steal the traffic light&. As a driver and a pedestrian Im telling you there put to better use directing traffic then shaking you house or car with the music of your choice.


But lucky for me I found a small red light in my next-door neighbors garbage. Its small but it will work until I find a full size traffic light. At which time I will post another instructable.

What you need.
1 Plexiglas or wood
2 traffic light
3 speaker - 1 or three depending on what type of traffic light you are using.
4 speaker wire
5 speaker inputs

(electric cross over if necessary)

Step 1: Clean.

The first thing you want to do is clean the light up& after all its probably been sitting outside collecting dust for some time.


No picture necessary

Step 2: Deal With That Plexiglas.

cut out your Plexiglas so that it will fit into your traffic light. it doesnt have to be perfect because it will be glued later on so that it is almost air tight.

Next cut out the circle for your speaker. use a compass, installing the speeker properly is important.


finally place the speaker into the hole you've created and glue. (no screws)

Step 3: Instaling the Speeker..

First connect the speaker to the inputs or the electronic crossover depending on how your connecting your sub.
now glue the input circle to the light case and make sure you have a good seal.



Step 4: Insert Time

Place the speaker and the Plexiglas into the case and glue. Make sure you have a good seal then let it dry.

Step 5: Finishing Up

Close the box (real tight) make sure theres no loose parts on the box and plug it in..

Step 6:

It doesnt sound good; but I like the look of it when its on behind the red glass.


Things to do in the future - add light

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29 Comments

Reverse polarity of the speaker and add reflextube/airvent to the frame, would sound much better I think...

Strong epoxy or glassfiber resin (don't know if correct word) would keep atleast a small speaker element in place.

Taychon is right. One thing you could do to help is add one or more ports (usually two will be enough). This will increase the efficiency of the system if done correctly. Otherwise you could just have the speaker faing outwards from the remaining walls of the enclosure. 

Great idea though 

Why "no screws"?, I think them should hold better the speaker, don't you?

To add light you could use a speaker like this one. Although you may want to try to find a red one instead.

it does look cool, maybe drill a few holes around the outside of the light?

you could flip around the driver and have a better but less ascetically pleasing cover in the rear. you could even add lights that way using the current to the speaker.

For the people in the the bay area, San Jose has a shop called weird stuff that sells used electronics and they have a bin has used traffic lights.