My BoomBox

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!

Step 1: 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 !!

Comments

[RoeyLeon]

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!

[james.m.k]

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!

[truliwicked]

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]

Thanks!
appreciate it ;)

Go for it , don`t waste time , invest in your self and start expressing your thoughts

[Gabse]

That looks like my pc-case (sharkoon acryl-showcase). Looks rearly cool, i like it.

[RoeyLeon]

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]

God ideal :-)

[mkaiwartya]

hi thanks foe sharing your ideas with us

[mangomango]

This is pure sexy. I love how it's acrylic and you can see all the components

[RoeyLeon]

Thanks!

loved your work - Inventor-Deadmau5 Head

[Mavamaarten]

Looks awesome!

[cartergalbreath]

How good is the sound

[Ben Mighall]

Is there a cheaper way to get decent speakers for this?

[RoeyLeon]

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 ..

[houstonwild16]

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]

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 :)

[bmoney41]

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

[bmoney41]

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]

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?

[inertia18]

hey cool boombox. You can make it cooler by putting LED lights inside for ultimate awesomeness

[RoeyLeon]

Hey

thanks!

i have ordered already from eBay some LED boards !

it will look awesome!

[inertia18]

hey cool boombox. You can make it cooler by putting LED lights inside for ultimate awesomeness

[mhansen5]

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]

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

[sshim1]

so for the coils did u just attach the ends of the wire

[RoeyLeon]

actually it`s a simple connection, i have attached a small drawing for u

[pgautam]

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]

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..

[vincentn1818]

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

[RoeyLeon]

Thanks!

In the next project i plan to put some video with a wider view on the hole process of work

Thanks again !

[jrigvd]

Very nice boombox, but its too bad you glued the tweeters in...

[RoeyLeon]

Thanks!

It`s very easy to remove the glue of the tweeters ..
without it they will fall off

[pgautam]

Hi may i know how much buks it cost you ??

[RoeyLeon]

Hey there

It cost me something like 270 $....

[~MBCENT~]

you could maybe use an old computer tower instead of buying all the angle pieces

[RoeyLeon]

Thought about it , but when i saw the Plexiglas in front of me ,it just seen like the right time to use this material ..

Next time i will make my life easier and use an old Housing of a computer

thanks for the TIP!

[danzo321]

You may not realize it but this serves as an internal baffle, very beneficial for breaking up standing sound waves and effectively eliminating the need to stuff box with some sort of insulation.

[RoeyLeon]

Hey

I actually did not know that
i was thinking to fill the back side of the speakers with some Mineral wool ( if i`m not mistaken it is made especially for isolation ).

do you recommend to do that ? or to stay in the current state ?

[danzo321]

Pink fiberglass seems to work the same as cushion polyfill. Try some and judge whether it helps.

[RoeyLeon]

Sounds interesting , will check it out and update

thanks very much!