Introduction: Make Your Own Boombox

In this project I will show you how to create a Boombox that mainly consists of a car radio, salvaged speakers and two 12V lead acid batteries. This upgraded version is louder and lighter than my previous Boombox and can play its tunes up to 9 hours continuously. Let's get started!

Step 1: Watch the Video!

The video gives you all the information you need to make your own Boombox. The following steps are just a couple of additional details to make your life easier.

Step 2: Order Your Components!

Here you can find a parts list with example sellers for your convenience.

Amazon.com:

1x Car Radio: http://amzn.to/1TOnFPC

2x Lead Acid Battery: http://amzn.to/1WsXNfD

1x Charging Controller: http://amzn.to/1WsX1zl

4x DPDT Switch: http://amzn.to/1U57g6I

2x Speaker: http://amzn.to/1WsX9i3

1x Speaker Terminal: http://amzn.to/1U57Zon

1x AC Socket: http://amzn.to/1U56AOK

1x 12V 10A Power Supply: http://amzn.to/1TOo1Wq

1x Antenna: http://amzn.to/1TOopUO

1x Wood Chest: -

Wago Terminals: http://amzn.to/1WsXtgJ

Amazon.de:

1x Car Radio: http://amzn.to/1XGBhPm

2x Lead Acid Battery: http://amzn.to/1TOpwnm

1x Charging Controller: http://amzn.to/1XGBqSU

4x DPDT Switch: http://amzn.to/1TOpRX8

2x Speaker: http://amzn.to/1XGB3b7

1x Speaker Terminal: http://amzn.to/1TOpAU7

1x AC Socket: http://amzn.to/1XGBx0K

1x 12V 10A Power Supply: http://amzn.to/1UmfgTk

1x Antenna: http://amzn.to/1UmeCFA

1x Wood Chest: http://amzn.to/1TOqPD1

Wago Terminals: http://amzn.to/1TOqGiI

Ebay:

1x Car Radio: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x Lead Acid Battery: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Charging Controller: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

4x DPDT Switch: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x Speaker: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Speaker Terminal: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x AC Socket: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 12V 10A Power Supply: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Antenna: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Wood Chest: -

Wago Terminals: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Step 3: Test Your Circuit!

It is always a good idea to test your circuit before mounting all the components inside the wood chest. Feel free to use my wiring scheme to do so.

Step 4: Mount Your Components!

If your circuit worked perfectly it is time to relocate it inside the wood chest. You can use my attached pictures as a reference.

Step 5: Success!

You did it! You just created your own Boombox!

Feel free to check out my YouTube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab
You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:

https://twitter.com/GreatScottLab

https://www.facebook.com/greatscottlab

Comments

author
Cbus27 (author)2017-05-12

How are batteries wired up ? Series or parallel ?

author
GooPaco (author)2017-02-28

Can I use a battery from a car (Varta D59),too?

author
Stormsofiron (author)2016-12-20

How many wago terminals did you use for this?

author
gbeltrao (author)2016-06-02

Not sure if this car radio has an auxiliary input, but if so I think that would be cool to connect it to a Bluetooth receiver...

author
Stormsofiron (author)gbeltrao2016-12-20

The pioneer fh x700bt would be an excellent start, i used that model for a time before upgrading to the fhx820bs

author
Stormsofiron (author)gbeltrao2016-12-20

It is better to get a radio model that has an internal bluetooth ability, like some of the pioneer fh x series models.

author
jharnish1999 (author)2016-05-31

where did you get your box

im having trouble finding one

author

Amazon.de

author

Is there an american variant? I cant locate any, and the vendor i found for your box does not shipto the States

author
pabloDa_ (author)2016-12-01

Do you have to configure the imax whenever you need to charge or can you configure it and leave it there.

author
VincentR32 (author)2016-09-17

How does it sound? I have a feeling that the opposite speakers would cancel each other or amplify if they are in phase.

author
ReedC5 (author)2016-08-17

The only things I would change would be to add foam baffles on the back of the speakers. And to, maybe, add a band pass subwoofer section to the bottom.

author
PierreZ (author)2016-06-10

merci

author
anthony.hite.9 (author)2016-06-06

Would be a cool addition. .......a power antenna from a car

author
incurablescrounge (author)2016-06-03

We used to build something similar 25 years ago for our "work trucks" that did not have radios in them. We would power it from the cigarette lighter. Nice instructable.

author
Yannick- (author)2016-05-29

What would be the required steps to using a Lithium ion/polymer battery? Any tips? Your timing is excellent I was planning to build a boombox right at this point in time. I was looking at http://amzn.to/24eScbO as an amplifier/bluetooth receiver. What would you suggest as power source for something like this? Thanks!

author
Rhayman3000 (author)Yannick-2016-05-30

Gel cells are very forgiving when charging. Other lightweight batteries not so. Just be sure you are using matching commercially made chargers for safety. Avoid fires and/or explosions.

author

Fires and explosions are definitely bad things. Nothing to do with your 'ible, but you might find this amusing. I had a friend years ago who maintained that insulation is there to keep the smoke inside the wires. He called me in a panic one morning looking for help with his car stereo. "I let the smoke out of the wires!"

author
Yannick- (author)mid_life_crisis2016-06-02

Just decided to go with a lead to acid battery and a pre-made protection circuit, way easier to handle and twice the capacity for the same price

author
Billbenn22 (author)2016-05-31

I have a 1974 General Electric floor model stereo phonograph turn table with a stereo tuner. it does not work and can't find parts to repair it. can you tell me where I can find an instruction manual to show me how to repair this unit as well as where I can get replacement parts so I can repair and run all new wiring and replace the speakers

author
gbeltrao (author)Billbenn222016-06-02

Try going to this store: http://www.oldradiosrus.com/

author
gbeltrao (author)gbeltrao2016-06-02

You can also buy another one to re-use its parts: http://www.ebay.com/bhp/console-record-player

author
MarcosQ1 (author)2016-05-29

I made something very similar but I charge the batteries using a 80W solar panel and I use a TDA7492P amplifier intead of a car radio. I already burned a couple of hifi speaker's coils due to the 'high power' of this amplifier. So, I'm thinking of using cheap car speakers. Because I can use car speakers with a hifi amplifier, right? I'm asumming both speakers work in a similar way.

author
EDCt (author)MarcosQ12016-06-02

Hey MArcosQ1, just wanted to give you a heads up, you are overdriving that amplifier's input stage and sending a clipped signal (Direct Current) to your speakers. That is why the coils are burning up and cheap speakers are not the solution to clipping gain staging is. That "high power" is actually distortion when it turns up. https://en.wikipedia.org/wiki/Clipping_(audio) Most speakers can handle an amazing amount of clean power but you can burn up speakers with a low power amp that is clipped. See tjdux's explaination

author
tjdux (author)MarcosQ12016-05-30

in theory all speakers work exactly the same way from a engineering standpoint. They use alternating current electricity to create an electronic magnet that moves a cone to push air that creates sound waves.

If you are burning up coils then your are applying too much power to the coils of the speakers. All speakers are rated for maximum power use in watts.

Simply put the power output of the amplifier MUST BE LESS than the power rating of the speakers being used. Example a 400 watt amplifier will blow out or burn up 50 watt speakers. A 50 watt amplifier will generally not damage 400 watt speakers.

Automotive speakers are availible in many different quality/price ranges but even most cheap aftermarket brand speakers will qualify as hi-fi for most general listening.

Look up 2 or 3 way speakers or component speakers with crossovers. This will separate the lower frequency from the higher into a cone woofer and a tweeter or multiple tweeters. Google those terms or go to the basic car audio website http://www.bcae1.com and learn more.

author
ChrisWho (author)tjdux2016-05-31

Your damage is not necessarily caused by overdriving your speaker - this will usually cause audible distortion long before the speaker destroys itself. However, if you are using a cheap or underpowered amp and turning it up too far, this will cause clipping that can kill a speaker before you hear it. Clipping is caused by the amplifier basically running out of power and sending a direct current through your speaker.

If you need to turn your volume up much more than 75% to have the sound at your preferred level, get a higher powered amplifier or a better quality amplifier. Better quality amplifiers will usually advertise a lower output, but it will be a clean output with less chance of clipping.

author
bwoodfield (author)2016-05-30

I did something "similar" for my workshop, but instead of using batteries I used a 12v power supply from a computer. The side speakers I put in a high-pass filter.

12718009_1739847452926425_3683330907818475919_n.jpg
author
amartinez86 (author)bwoodfield2016-05-30

Do you have an instructables for yours?

author
bwoodfield (author)amartinez862016-05-31

I took photos, but no I don't have an instructable.

author
amartinez86 (author)2016-05-30

Good job

author
xxjeroen (author)2016-05-30

Turns out that the speakers work at 12 volt

I drilled trough the plastic toolbox into the plastic speaker case and the wires went through the toolbox

It's a little cheaper with the same result

Like yours better though....lol

author
The weekend mechanic (author)2016-05-29

Great idea! Add solar panels.

author

Given the small surface of the lid, they would not do much.

author
Mihemine (author)2016-05-29

Hi, what voltmeter did you use ? Is it precise ? Looking for a meter for a diy bench power supply that is precise

author
RGBFreak (author)2016-05-29

Amazing man! Can't wait to build it :)

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