Instructables

Homemade Boombox Collection

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I made all of these boomboxes. I was first inspired to make boomboxes by the character Radio Raheem from the movie Do The Right Thing. My first one was bigger and heavier than it needed to be and used a pair of overpriced speakers that were lacking in highs. Since then I have figured out that car speakers work well as they are light and are usually co-axial or have full-range response. 

First Boombox- 6 1/2" speakers, Dayton T-amp custom wooden box. Too big, lacks highs. To make this one I had to custom cut the a couple big wine boxes (6 bottles). UPDATE: Now using coaxial car speakers ( http://www.parts-express.com/pe/pshowdetl.cfm?&Partnumber=267-7164&scqty=1) that sound a lot better. Also made the box slimmer, so it's easier to carry.
Second Boombox- 4" Car Speakers, T-amp module. Much smaller and easier to carry. Made out of a single wine box. UPDATE: upgraded the amplifier and the internals. Now able to use 3 different power supplies, batteries, a 12v wall wart, and 120v power from the wall stepped down with an internal SMPS.
The twin Boomboxes- 5 1/4" speakers, internal 12v power supply for plugging into the wall. They were made out of bigger single bottle wine boxes. No picture gave them to friends.


I will definitely be making more of these in the future. When I do I will be sure to update this 'ible.

Some sites I used for parts:
Parts Express- Where I bought the drivers and amps
JorgeTristan11 months ago
Hi, Can you tell me how much does the batteries last when using the boombox?
I am trying to build my own out of some old JBL computer speakers (12v), an ammo box and a Motorola S705, I was planning in using a 7.2Ah SLA batt, although it is heavy.
how many watts have amplifier ant speakers in big boombox
if i put a in box that amplifire and not put in the wall but i put 12v and 24ah batery it will be enouhg?
if i put this amplifier http://www.parts-express.com/pe/showdetl.cfm?partnumber=320-313 in that bigger boombox it will be a lot of sound?
radiorahim (author)  dvasiliauskas1 year ago
You'll need a really big power supply to power that amplifier. The boombox wouldn't be portable, you'd have to plug it into a wall, but yes, it will give you a lot of sound.
hi, can you shou me whats in side in the bigger boombox?
radiorahim (author)  dvasiliauskas1 year ago
There's not much inside the big boombox, just the speaker wire connecting the amplifier (the black box) to the speakers.
Hey could I switch between a 12v battery and a dc power supply? If so how?
Thanks in advance.
maddan4172 years ago
Hey, could i use this amp http://www.parts-express.com/pe/pshowdetl.cfm?&Partnumber=320-307&scqty=1, to power 4-6 speakers. Then also this http://www.parts-express.com/pe/showdetl.cfm?Partnumber=320-176 for the sound controls, i would then be hooking up my ipod with an aux cable. I am going to power it with a power cable, maybe a battery. My other question is can i hook up a more powerful 600W x 1 channel amp to a sub and have both amps play off the same aux cord?
radiorahim (author)  maddan4172 years ago
If you need to power 6 speakers that amp board seems to be the best option, just make sure you have a powerful enough power supply. Also you can run multiple boards with the same ipod and aux cable, you will just need to bridge your connection to the other channels. So you'll hook up your aux cable to one set of RCA jacks and then find some way to wire up the rest of the channels either with wire and the little holes on the board or with some stacking rca cables.http://www.parts-express.com/pe/showdetl.cfm?Partnumber=240-525. As for the sound control, apart from being outrageously overpriced, I don't like to use tone(bass/treble) controls, I think the music sounds best the way it was mastered. If you're just looking for a volume control either use the one built into the ipod or use a simple potentiometer like this http://www.parts-express.com/pe/showdetl.cfm?Partnumber=240-525
Could you give me the link to the potentiometer you'd recommend the last one was the wrong link
radiorahim (author)  maddan4172 years ago
For the potentiometer. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=023-650
So is this correct?I hook up the two amps to each other with the rca cables and then plug another pair of rca cables into the open stack and just run the end of that to my 3.5mm jack?
colvin10052 years ago
Can you give more info on adding/relocating the Pot? Did it come with the amp or did you purchase one? If purchased, how do you know what kind to get?
radiorahim (author)  colvin10052 years ago
Sure. The pot in the picture came with the amplifier module I bought. You can also substitute in any stereo (dual ganged) potentiometer of any value between 10k-100k, I like to use 50k. You do not need a potentiometer if you can control the volume from the source (iPod, iPhone etc.). In my more recent boomboxes, I have gotten rid of the volume control altogether to save on cost, reduce wiring clutter and because they are very hard to fit on the thick wooden panels.
peytonalysa2 years ago
I am making a boombow for a school project and was wondering if you could please give me directions on how to make these?
radiorahim (author)  peytonalysa2 years ago
Sure no problem, I'll break it down step by step.
1. Find a sturdy box or make a box, finding one is easier
2. Get some speakers, you can buy them or salvage them. Computer speakers are pretty good.
3. Cut circular holes in the box for the speakers. I used a jigsaw.
4. Mount the speakers to the box using screws.
5. Get an amplifier or make an amplifier or find an amplifier. I got mine here (the black box) http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-380 but this one is pretty much the same and cheaper http://www.parts-express.com/pe/showdetl.cfm?Partnumber=310-300 . Or again you can salvage some from computer speakers. It all depends on whether or not you need the boombox to be portable.
6.Hook up the output of the amp to the speakers. Hook a source (Ipod) up to the input. Connect power (batteries) play music.
If you have any more specific questions (volume control, amplifiers, speakers), I'd be happy to help. Also there are some other great instructables that cover the boombox process with more detail...check them out
What will the batteries be used for? HOW BIG WILL THE BOX NEED TO BE TO FIT ALL THE COMPONENTS?
radiorahim (author)  peytonalysa2 years ago
The batteries are used to power the amplifier. A 12v power supply that plugs into the wall will work also it just won't be portable. As for the box size there are some decisions you need to be able to make on your own. If you are building a box to fit your components then I suggest laying everything out, marking where everything will go before you do any cutting. If you are sourcing components to fit a certain box, again make a cardboard model of each component to make sure there is enough space to fit everything.
Ok thank you
Thank You soooo much for helping us out. You are an exceptionally good human. If we have any questions or need help trying to make these boomboxes we will comment. Thanks again!!!

klatten3 years ago
What kind of kit did you use for the small boombox? How much did it cost approximately to make it?
radiorahim (author)  klatten3 years ago
The amplifier module came from Parts Express. It is pretty simple to hook up, an input jack is already soldered onto the board, and it comes with wires for the speaker and battery connections. I'll post some more pictures so you can get a better look at it. In the mean time here's the link http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-385
radiorahim (author)  radiorahim3 years ago
I got the wine box from a friend. It is sturdier than most wine boxes, so it is great for a boombox. The handle was the part that carries the thicker end of the wine bottle. As for the cost for the amp, battery holder, external input jack, speakers, grills and knob it was about $50. The knob itself was $3, I will probably just use a cork next time.
What was the reccomended wattage for your car speakers you used? Because I have some that appear similar but their reccomended wattage is 30 nominal to 60, so I am not sure if the 15w amp would be able to do it. But I don't need it to be too loud, just good stereo levels
radiorahim (author)  rakejooney3 years ago
For the small box the speakers are rated 25W RMS and 50W max. I made some more boxes using the same amp and 5 1/4" speakers with ratings identical to yours and they turned out well. Really don't mind the ratings, your speakers will work fine. I once had to run a 12" subwoofer with the same amp and at full volume it was much louder than I needed it to be.
biggeesmall3 years ago
Hey could you tell what part you used for the input jack? Thanks!
radiorahim (author)  biggeesmall3 years ago
Sure. It is just a standard 3.5mm input jack. Radio Shack: http://www.radioshack.com/product/index.jsp?productId=2103451 OR Jameco:
http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2095437_-1 OR something similar, just make sure it is a stereo connector, it should have 3 pins.
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