Instructables
Hello everyone

Have you ever encountered a situation where you went with friends to the beach at night  or maybe some  friend's apartment and he had no  stereo system?

It happened to me, and it sucks! 

So , i decided to build one !    

although it weights 6.5 Kilo , You Grab it with both your  hands , put the music at Max and have the best time !


Enjoy!


 
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Step 1: Shopping List

Picture of Shopping List
Materials :

1X1 meter of Plexiglas , preferable Transparent
screws & nuts - a lot!
12V 7 amp Batteries , preferred 2 for longer operation
Lepai Amp from eBay
12V Charger for the Battery -eBay
Speakers - i got the Pioneer 4.5" as Woofer / Mid-range  and a pair of Teac t20 Tweeters 
Volt-meter - ( not shown yet , but will be attached later )
Wiring for speakers
Iphone Dock
Aluminum Angles - comes in 3 Meter length - - for connecting the Plexiglas sides to each other

Tools :

Driller and electric screwdriver
Jigsaw - most important instrument - make sure you cut the Plexiglas with a refined saw (designated for steel)
Marker
Leveler
Calipers
A pair of clamps
Drill bits -  different sizes
Caliber
Tin snips + a pair of working gloves so you wont cut yourself 
Soldering iron - for the wiring
tin
Hot Glue

Time ,Patience , and lots and lots of Coffee !!


Step 2: Cut the Plxiglas

Start by planning the general size of your future to be Boombox.


Measure the inner diameter of your speakers , and accordingly mark it with the Caliber or some other ruler on the Plexiglas

Prepare the driller and and the jigsaw ,and off we go our way



 

Step 4: Drill holes in the Aluminum and Plexiglas

Make sure you grab the Aluminum angles to some tight ground , only then Drill !

Use a special drill bit for metal, that way  the hole will be accurate and round , and  probably will take less time to drill.
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Looks awesome!
mangomango1 year ago
This is pure sexy. I love how it's acrylic and you can see all the components
RoeyLeon (author)  mangomango1 year ago
Thanks!

loved your work - Inventor-Deadmau5 Head

mkaiwartya1 year ago
hi thanks foe sharing your ideas with us
Gabse1 year ago
That looks like my pc-case (sharkoon acryl-showcase). Looks rearly cool, i like it.
RoeyLeon (author)  Gabse1 year ago
Thanks!
it is actually the size of a Desktop computer ...

I`m thinking about mounting him a pair of wheels so i can roll it over from place to place instead of lifting it ;)
Gabse RoeyLeon1 year ago
God ideal :-)
If this isn't sweet...I don't know what is! I love to see electronics made with Plexiglass. Wish I had the tools, time and patience.
RoeyLeon (author)  truliwicked1 year ago
Thanks!
appreciate it ;)

Go for it , don`t waste time , invest in your self and start expressing your thoughts
james.m.k1 year ago
Very cool!
Very nice looking enclosure too!

Takes me back to my post high-school days when a friend and I used to make and sell sub-woofers, mostly for cars!
RoeyLeon (author)  james.m.k1 year ago
Thanks!


that sounds very cool !

believe me , this whole building of speakers , and boombox`s , and especially the things you see on this site makes me wanna build another one!
EastWarez17 days ago

Nice build!!!

I love that you can see the internals

but to make it a bit more portable you should have used a like 2 of those in parallel i think you need 12v? than that would be an better option? Those car acid batteries are really heavy! but you choice =P Still a nice build!

WillERoberts11 months ago
What is the bass like with this? By watching the video the bass almost sounds non-existent. But i assume that's just due to sound quality.
RoeyLeon (author)  WillERoberts11 months ago
your right!


the bass is actually very surprising . it is very rich and soft and not cold and hard.

it is all due to the Reflex port location and the middle partition , it gives the woofers a better sound

did you ever play music before you cut the reflex port?
RoeyLeon (author)  WillERoberts11 months ago
Yep

and the sound was rubbish/

well at least the BASS was awful .

you must let the Membranes " Breath " they are moving in and out , and the whole concept of Acoustics is give the sound waves the ability to move freely in the box


either way , the sound is much better with a Reflex port \

I've made an ammo box speaker (my profile picture) but i haven't put a reflex port on it. My problem is knowing where to put it, any ideas? i was thinking on the side of the box where the lid catch is but i don't know. There is a whole science of reflex ports, so any help would be appreciated!
RoeyLeon (author)  WillERoberts11 months ago
Well you are right about the science issue of those reflex ports

to get the best sound we need to have a professional lab , with a few guys who know a thing or two about acoustics

first i have seen already your boombox and it`s awesome!

second , i would have make a small 3x3 reflex port between the speakers ( top side )

or a better way - on the internal side ( where the air freshener is )
cut a small 3x3 hole( even a 4x4 ) , put a round tube and get it to come all the way over the middle ( above the battery )

i read an article about tubing inside a woofer box and it`s very complex , but it`s better then just making a hole.

attached is picture

I'm just a bit hesitant of cutting a hole as once it is cut then i can't go back. I have just ordered 2 more ammo boxes so maybe i'll transfer the guts into that one and put a port on it. I'll let you know how things turn out!
RoeyLeon (author) 11 months ago
the pictures
GuestPolis1 year ago
Nvm I read it again and found it
GuestPolis1 year ago
I'm completely new to this but I'm slowly collecting materials to build my own rig. So I would like to know what kind of 12v battery you are using or what you would recommend.
How good is the sound
Is there a cheaper way to get decent speakers for this?
RoeyLeon (author)  Ben Mighall1 year ago
HEY!

sorry for replying only now

if you plan on building one then the total cost is about 300$ ...

take your time ...

i do think that there is some way to reduce the overall cost of this project ..
Hey, I'm just wondering, A.) what thickness of acrylic you used, and B.) what the outer dimensions of the case are? Any help is appreciated.
RoeyLeon (author)  houstonwild161 year ago
well the thickness is 1cm
on the bottom i used double sided Plexiglas ( due to the weight of the batteries )

the outer dimensions are : height --> 60cm width--> 25cm depth --> 30cm

weight with batteries and speakers and crossovers and the plexi --> 6.5KG!!!

WITH PLEASURE :)
bmoney411 year ago
I see what you mean about the amp. The head unit should power the speakers alright, but it wouldn't push them. I was hoping to power it with the two 12 volt batteries
bmoney411 year ago
Hey man this idea is awesome! I was thinking about building this for my college dorm room, and I was wondering if you liked my ideas. I definitely want to use acrylic and the aluminum angles. I was going to use two 6 1/2 inch Polk audio 2-way speakers. I was hoping that since it is a 2- way speaker that this would eliminate the need to build a crossovers for the tweeters because it is built in to the speaker.(I don't feel like I could create that lol + it would save money). And instead of the mini amp I was thinking about installing a single-din stereo head unit in the upper front. That way I would be able to receive fm/am/aux/cd/Bluetooth/and a remote. The speakers could also be easily installed to the back of the head unit. The only thing I was confused about is how to wire the power supply...but how do you like the idea? (I also want to add blue led lights on the bottom) (the front panel would have the two speakers and the head unit)
RoeyLeon (author)  bmoney411 year ago
that sounds awesome!

but i don`t konw if the head unit will be able to push the speakers .


if you plan on building some boombox , i would recommend to attach it with some small AMP .
take a look at what i installed : Lepai LP-2020A+ 2 Channel Amplifier : search for it on eBay , it will cost 22$ at most . and it can give you great output


if you have a built in crossovers then you saved money ! that good ,

BTW

do you plan on running it via batteries? or via an electric output?


inertia181 year ago
hey cool boombox. You can make it cooler by putting LED lights inside for ultimate awesomeness
RoeyLeon (author)  inertia181 year ago
Hey

thanks!

i have ordered already from eBay some LED boards !

it will look awesome!
inertia181 year ago
hey cool boombox. You can make it cooler by putting LED lights inside for ultimate awesomeness
mhansen51 year ago
This looks awesome man! Great job!

For your positive wires going to the midrange/woofer from the crossover, are those coils around a magnet or are they just coiled up around a regular spool?
RoeyLeon (author)  mhansen51 year ago
Hey man !

thanks !

actually they are coiled up around a regular spool

before i installed the Crossover the sound was good , but now after the installation , the separation of the frequencies are just awesome , and the change is enormous

sshim11 year ago
so for the coils did u just attach the ends of the wire
RoeyLeon (author)  sshim11 year ago

actually it`s a simple connection, i have attached a small drawing for u
Coils.png
pgautam1 year ago
Hey I have one small question,Does this glass enclosure able to provide the same out put provided by the wooden enclosure or any changes in the audio quality ??

& another thing is i have sent you an private message,did u see that ??
RoeyLeon (author)  pgautam1 year ago
Hey

sent you a private message

The glass enclosure actually provides quite good isolation, and thus gives me a pretty good sound.

I don`t think that you can compare it to some wooden box , since wood and Plexiglas don`t react the same to sound waves..

great build, u should do a video build or a more thorough instructable. nice job again
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