Picture of DIY Tough Bluetooth Boombox (Lasts 20hrs!)

Get ready to build a tough & rugged boombox! "RaveBOX (v1.0)" can charge USB devices, play MP3s and tune to FM stations! It also comes with an IR remote offering better convenience. The boombox gives action sports and outdoor enthusiasts 18 hours of nonstop music. Whether you're at the beach, shooting rapids, or hiking outdoors, the boombox remains safe in its tough (Pelican-like) weatherproof shell.

How I Came Up With The Design:
It's been a while since I last posted my last boombox tutorial, it was pretty much a success but as we all know technology advances annually. RaveBOX is now as powerful as my old boombox but it's half the size of the old one.

I really had no design when I made this project, I had a "go with the flow" sort of vibe. One day I went to the mall to buy my usual supplies then suddenly I came across this generic Pelican-like case. They were selling it for like P480 ($9.60), I still had some speaker lying around, so I thought it would be cool to fit my four unused fullrange speakers + my 4" HiFi woofer. With no hesitation, I bought the awesome looking case. As I went back home, I started searching for parts in my inventory. I still had some amp chips lying around. I found two extra 2x3 Amp Modules (form and my beloved Bluetooth Player Module (from

All that's left is my battery, I wanted to make sure that my boombox would last a day of non-stop playback without charging, so I though of a solution! My robots are using LiPo batteries since they had a high "size to power" ratio, meaning they have a high mAh rating for their extremely compact size. Since the competition is still scheduled for December, I borrowed some of my LiPo batteries and decided to put them in my new speaker project.

Specs/ Features:
- 2.1 Channel Audio System (6W + 6W + 20W)
- USB Charging Capabilities (6600mAh)
- 18hrs Max Playback (LiPo Bat)
- Bluetooth 3.0 Audio Connection
- 3.5 Stereo Auxiliary Connection
- Equipped w/ FM Radio Tuner
- IR Remote Control

WARNING! You'll need some basic soldering skills, a little knowledge of electronics, and some patience to build this. Please don't blame me if you mess up the modules. SMD chips are very sensitive to over-voltage, handle them with extreme care! There's a lot to go wrong with this project. Good luck!

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ynze1 year ago

You put the charging unit directly to the lipo battery. So you can charge only 12V devices? What's the idea behind that? It would be cool to put a voltage regulator in between, so you can charge phones, psp's and mp3-players...

ASCAS (author)  ynze1 year ago

The charging plug is for the boombox's LiPo charger. If you look at the boombox very closely, the Bluetooth panel has a USB port. You can certainly charge any type of USB device (iPhones, PSPs, etc...).

tiagos ASCAS10 months ago

So for the pcb amplifier ?

KobyJ13 days ago

what are the smaller 4 speakers rated for? are you getting the full power out of them only using the 3W amp?

MannyK29 days ago
Hi guys, so I'd like to create a really good instructable similar to this. I was wondering if someone here could help me? If I use a bigger case with more powerful sub n tweeters do I need to cut a port into the case to get some power? Also any ideas for batteries???
Waypuff29 days ago

I'm sorry if this is a stupid question, but I just started to learn about circuits, speakers and amps. I really want to do this project because it seems like fun and I want a portable Bluetooth speaker (and this one seems like the best one, you are amazing). But what is the 2005bridge amp thing. It seems super complicated to build, and that's whats kinda scaring me with this project. My question is, could I buy anything like it that is already done and would I have to change any other components then?
Otherwise amazing tutorial and you truly are an inspiration. Keep up the good work!

agoldsmith11 month ago

what's the depth of the your case?

nneracher1 year ago

at step 7 what resistor you solder on the module, is in the first picture of step 7. thanks

ASCAS (author)  nneracher1 year ago

It's a 470uF capacitor for filtering the line. It's done to prevent the buzzing sound.

JesseD3 ASCAS2 months ago

Were you able to eliminate the buzzing? I have the same BT module and when BT is connected, there is a digital oscillating squelch. It is not loud, but loud enough to be annoying. Some of the reviewers on Dx noted the same problem.

put a 470 uF capacitor for filtering the line to prevent the buzzing sound.

ghamit ASCAS9 months ago

470uF at what voltage?


List of the capasitors, resistors etc? Please
broorb8 months ago


I tried making the TDA2005 mono amp, but I couldn't get it to work. I tried twice. I made sure that my PCB doesn't have any short. I followed all parts, except that I got the TDA2005R ( not TDA2005M ). I am not sure if this was the culprit. And man, did the IC heat up. I was using a 13v, 4A power supply.

Any help would be appreciated.


MikeA9 broorb3 months ago

When soldering components’ you should use a heat sink like an alligator clip between the component and the soldering to absorb the heat so you don't fry the component.

I tried to add a picture but the site wouldn't let me.

Divergence broorb5 months ago
Well if you haven't already put a heatsink! Cause otherwise that amp will screwed in no one from the heat :)
*no time

hi i have just seen your project and i think it;s brilliant what you have done so i was thinking of building on myself and was looking a your wiring diagram and was wondering instead of using the amp you built for the woofer could you just use another digital amp you used with the other speakers and if so do you need the resistors on that line if you could let me know i would be grateful

MikeA93 months ago


atmartin763 months ago

hi i have just seen your project and i think it;s brilliant what you have done so i was thinking of building on myself and was looking a your wiring diagram and was wondering instead of using the amp you built for the woofer could you just use another digital amp you used with the other speakers and if so do you need the resistors on that line if you could let me know i would be grateful

tiagos10 months ago

If my bigger speaker got 3" instead of 4" does it change many things in the pcb amplifier Thank you!

QAZW tiagos4 months ago

no, just make sure your speaker can sustain the output wattage of the amp

julesoo75 months ago

we can make more powerful speakers
and we can connect a jack for electric guitar
excuse me for the lack of spelling I do not speak much English

julesoo75 months ago


what is the total price when we bought everything

Divergence5 months ago

wait. don't you have to use a balanced charger with a lipo? in the wiring diagram you don't have one... only a dc charging jack? does this mean you don't need one...

ASCAS (author)  Divergence5 months ago

I already had stated that in step# 12. I guess you already know where to hook it up. :)

Divergence ASCAS5 months ago
Oh yeh my bad haha

where do you get the 2.2 uf 25v capacitors?

also where do you get the 100 nf 25v capacitors?

you can buy them from any electronics store, in australia i use jay car or altronics, try radioshack in america

thanks mate

Or they're cheap as on eBay or :)
AlfiaMak5 months ago

There is nothing wrong of surface mounting thru hole compoments on the copper side.

Dries-H7 months ago

What's te use of using 4 tweeters?

They're not tweeters they're full range
Divergence6 months ago
Great instructables man! Just wondering if this is a more expensive project than the Bluetooth speaker you made a couple of instructables ago and what are the advantages to this one? Other than being able to charge, use SD or fm
Matt2716 months ago
What capacitor did you use on those PAM amps

Hello. Awesome setup! Do you have an update and precise parts list?? Much appreciated!


ASCAS (author)  george.winstong6 months ago

Thanks. I showed pretty much everything in Step#1. If you're looking for a different BT speaker project, I'm working on a 3D printed version. Probably I would be finished by the last week of December then publish the guide on January.

Yes I would be interested! However, for now I want to build something for someone for christmas. I'll try with what you have and then build another with your updated version. thanks!

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