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DIY Portable Boombox (from SCRATCH!)

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Picture of DIY Portable Boombox (from SCRATCH!)
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Time to party! Let's rock the house! Today I will show you how to make a boombox that sounds like a genuine audiophile speaker. It's made from 100% scratch. I added an iPod docking feature, it also works with any kind of MP3 player with an auxiliary output, it also has a 2 channel RCA output. I even added an USB/SD card audio player with a remote control for the Boombox!  The Total cost was $46.16 (Converted Price from "Philippine Peso")

I made this guide as specific and as step by step as I can, the only thing that dragged me down from finishing my boombox early, was the documentation for instructables that I did for this project. I hope you enjoy it!

My version was so efficient that it even had the capability to beat or match-up the sound of the Monster™ Beatbox (by Dr. Dre), Zeppeline™ Air, Altec Lancing™ IMT800 and IM7. My boombox has the capability to release a clean, deep and low bass, with the perfect midrange level and has a spectacular treble that seems to sooth the ear. It has a two way speaker system which will definitely reduce the amount of distortion given off by the speakers thus improving your audio experience. 

Specs:
Frequency response: 45Hz-20kHz
Max Amplifier Wattage: 2x30W Stereo
Total Harmonic Distortion (THD): 0.1%THD 
Max Speaker Wattage: 150W-200W RMS
Speaker Size: Woofer (5.25"), Fullrange (1.75")
Enclosure's Dimensions: H= 5.75", L= 19", D=6"
Other Feature's: iPod Dock, USB Media Reader, IR Remote, Bass Trebble Equalizer and etc.
Audio Input Type: RCA, Auxiliary (3.5 Stereo) and 30 pin iPod Dock.


This project is ideal for: Picnics, Parties, Car Road Trips, Home Use and etc.


If you don't have time reading the long texts, there are summaries written in bright red text below each step.

"It takes pure craftsmanship and experience to build a highly efficient boombox from scraps and pieces. "
 

 
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SDgeek1 year ago
Nice boombox! I love that people are getting into bringin' the boombox back. I wish you would've given more detail on your amp build tho.
ASCAS (author)  SDgeek1 year ago
Too bad I have a lot of p;ans this summer. No worries, I'l post it soon.
junglebrad1 year ago
This is so awesome, I'm ordering parts for it now. Do you know how to make this battery powered?
ASCAS (author)  junglebrad1 year ago
Yes! Simply connect the battery to your amp's power input.
Wow! Great job and amazing work. This looks professional. You are very skilled. I look forward to seeing future projects.
ASCAS (author)  jondneumann1 year ago
I promise, there will be more. Thanks for the comment ! :)))
Shaji471 year ago
Good job.... Keep it up..... :D
ASCAS (author)  Shaji471 year ago
Thanks!
icekid1 year ago
Nice Job!
bobzjr1 year ago
I was just looking through some of your work - including this boombox project. I must say you do a beautiful job of presenting the material. Pictures are excellent. Wow - if you still have a lot of school to go - you have a HUGE headstart on your peers! Thanks for sharing your hard work.
ASCAS (author)  bobzjr1 year ago
Thanks!
GarageGuru2 years ago
Nicely done!
ASCAS (author)  GarageGuru2 years ago
Thanks!
I like it, it's cool that you used wood in that application.
ASCAS (author)  vroom...vroom...2 years ago
There's another type of material, you can use MDF. Those kinds of woods are specially designed for speakers, it's not actually wood since it's man made.
tutdude982 years ago
one of best portable boombox on instructables
ASCAS (author)  tutdude982 years ago
Thanks!
Avelltech18 days ago

Hi again! Where did you buy the TDA7394 and the TDA1524 chip tone control in ph? I check e-gizmo and they only have the TDA7268 2x2W amp. I dont want to buy out of the country items since it always take 30days :(. or is there a good amplifier that is available here in ph that is battery efficient. Also I have a 2x (0.5W 8ohm full range speakers), 2x (2W 4ohm full range speakers) and 1x (8W 8ohm woofer speaker) can I use this for my boombox or should I buy a new higher wattage set of speakers like yours?

ASCAS (author)  Avelltech18 days ago

DEECO sells TDA7394 amp chips. Those speakers are too weak to make a boombox. You're probably looking at a mini speaker setup. Larger speakers are required to build a loud boombox. Right now you have two choices:

1.) Stick with your speakers and find a suitable low wattage amplifier circuit.

2.) Replace those speakers with a higher watt rating and build a TDA7394 amp circuit.

Avelltech ASCAS17 days ago

If i stick with my speakers can i use both 0.5W and the 2W speakers even though they have different power rating?...

NNS972 months ago

dude very nice work!!! can you plz help me(newbie)by posting a circuit diagram of the amp and tone control circuit connected together?? thank you

NNS972 months ago

NICE WORK!!

But can i use the TDA8580J ic for amplifier instead of TDA7394

ASCAS (author)  NNS972 months ago

Yes you can but you'll need a different PCB. By the way, I would recommend trying the TDA8560 since I have tested it and works fine.

girisb2 months ago

One of the best and neatly laid out Instructable.

IT-Jack1 year ago
Hey, This looks like a great project, but what if I want to mount a radio in the Boombox. How do i do that?
dcusco IT-Jack6 months ago
http://www.instructables.com/id/The-Box-Radio/
you could probably work with what this guy did
Psychospazz6 months ago
WOW great job... amazing... and thank you.... been looking for a nice instructable to build a sound doc for my pod.
Raphango7 months ago
Explendid!
Really awesome!

Do you have the schematics for the amplifier? I really want to make my own amplifier from scratch. No use buying one. And since I'm a begginer, a would really aprecciate a detailed circuit w/ materials.

Tank you so much!!
Fozzibehr7 months ago
So how would you run this off a battery? and also, I'm a bit unclear as to how the switch box works, and did you buy that or did you make it?
ASCAS (author)  Fozzibehr7 months ago
Are you familiar with the SPDT switch (single pole, double throw switch)? The battery and the power source's negative (-) terminals are connected to the common ground, while the positive terminal of both sources are connected to the SPDT switch. You'll get the concept by reading this simple diagram.
circuit5.gif
Fozzibehr ASCAS7 months ago
If you ran the switch so that the battery would either connect to the amplifiers power or the dc adapter, would that be an effective way to charge the battery? Also, all the amplifiers I found run off a left and rights speaker system, If I have a woofer, mid and a tweeter running through a crossover, would there be an effective way to get both the left and right sides off the one crossover?
Fozzibehr ASCAS7 months ago
So this would allow it to either run of a battery or a wall power correct? Do you know of a way to charge the battery? such as if you have the switch on the battery, and being able to either switch it to the dc adapter or the amplifers input?
ljuwana8 months ago
nice tutorial...good job
I like the sealed of full range speaker
ASCAS (author)  ljuwana7 months ago
thanks!
Fozzibehr7 months ago
Could you post an instructable on how to make an amplifier? I love the project, and would love to get into amplifiers, but I cant find anything on them
also, how would you run this on a battery?
ASCAS (author)  Fozzibehr7 months ago
Simple, the amplifier runs on DC electricity, so just add a switch to your battery.
ASCAS (author)  Fozzibehr7 months ago
Search for the brand "Lepai" in amazon, it's a good amplifier (class-T), you could buy it for around $22. But if you want to make one from scratch.

Be sure to come back this September, I have a lot of plans for my list of audio projects.
mgubany8 months ago
How do you connect the usb/sd card reader module to the amplifier?
elsonero8 months ago
very good, just wanted to know if it is possible that the ipod ce could connect to load automatically if you have the diagram thanks
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