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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

How are batteries wired up ? Series or parallel ?
<p>Can I use a battery from a car (Varta D59),too?</p>
How many wago terminals did you use for this?
<p>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...</p>
The pioneer fh x700bt would be an excellent start, i used that model for a time before upgrading to the fhx820bs
It is better to get a radio model that has an internal bluetooth ability, like some of the pioneer fh x series models.
<p>where did you get your box </p><p>im having trouble finding one</p>
<p>Amazon.de</p>
Is there an american variant? I cant locate any, and the vendor i found for your box does not shipto the States
<p>Do you have to configure the imax whenever you need to charge or can you configure it and leave it there.</p>
How does it sound? I have a feeling that the opposite speakers would cancel each other or amplify if they are in phase.
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.
<p>merci</p>
Would be a cool addition. .......a power antenna from a car
<p>We used to build something similar 25 years ago for our &quot;work trucks&quot; that did not have radios in them. We would power it from the cigarette lighter. Nice instructable.</p>
<p>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!</p>
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.
<p>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. &quot;I let the smoke out of the wires!&quot;</p>
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
<p>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</p>
<p>Try going to this store: http://www.oldradiosrus.com/</p>
<p>You can also buy another one to re-use its parts: http://www.ebay.com/bhp/console-record-player</p>
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.
<p>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 &quot;high power&quot; 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</p>
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.<br><br>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. <br><br>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.<br><br>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.<br><br>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.
<p>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.</p><p>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.</p>
<p>I did something &quot;similar&quot; 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. </p>
Do you have an instructables for yours?
<p>I took photos, but no I don't have an instructable. </p>
Good job
<p><iframe allowfullscreen="" frameborder="0" height="281" src="//www.youtube.com/embed/RGUZs6hSfAU" width="500"></iframe></p><p>Turns out that the speakers work at 12 volt </p><p>I drilled trough the plastic toolbox into the plastic speaker case and the wires went through the toolbox</p><p>It's a little cheaper with the same result</p><p>Like yours better though....lol</p>
Great idea! Add solar panels.<br>
<p>Given the small surface of the lid, they would not do much. </p>
<p>Hi, what voltmeter did you use ? Is it precise ? Looking for a meter for a diy bench power supply that is precise</p>
<p>I think I used one like that: <a href="http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=161247229877&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg">http://rover.ebay.com/rover/1/711-53200-19255-0/1?...</a></p>
Amazing man! Can't wait to build it :)

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