Introduction: Soup Cans!

For the purposes of a pun, "cans" are another word for "headphones".

Here's how to make audio-cans from soup-cans, and some other things.

Step 1: Parts & Tools

I used:

Two large soup cans (Lidl chicken, vegetable & pasta - it's OK)
One Scotch Broth can (Lidl, better than OK)
Two small speakers (4 Ohm)
A wire coat-hanger
Electrical insulating tape
Various bits of wire
Expanded polystyrene foam
PVC tube
Most of the electrical content came out of an old phone I bought a while ago.

Screwdrivers
A knife blade
A drill
Fencing pliers
Pliers
Scissors
A soldering iron

Step 2: Mounting the Speakers

I held the speakers in place with two blocks of expanded polystyrene foam.

Wash and dry the soup cans thoroughly.
Press the cans onto the foam to give you a rough size to cut.
Cut circles of foam, but trim ~ half an inch off two sides, you'll need this to get the foam into the cans (see later).
Press the speakers onto the foam to give you a rough size to cut.
Cut enclosures for the speakers, in this case the rectangular holes grip the magnet assemblies.
Taper a round edge to accommodate the speaker-cone, and ensure there's room for wire to pass through the foam block.

Step 3: Connecting the Cans

This bit involves the most hard work.

Untwist the coathanger and straighten it out as best you can.
Bend 2 x 90o in the middle to give a square turn through 180o.
At the ends of the wire, bend each around 90o and trim (I had to use fencing pliers on this - it was tough stuff)
Form 90o bends at each end, and curve the centre section to fit your head.

Run (electrical) wires across the the coathanger, securing with tape, these will connect one speaker to the audio input from the other can.
Whilst I was at it I incorporated two sweet-wrappers for reasons which should be obvious now if not later...

I've then secured the end pieces to the main cans with small sections of steel cut from another can.
Holes were drilled through both and the two pieces of metal connected with a pair of nuts & bolts.

Step 4: Final Assembly

Solder the wires together as the diagram..

A hole was drilled in the right can to take audio-in cable (from the phone, which conveniently had a screw-mount crimped onto the cable)

The black & white wires running between the two cans connect to left audio-in at the right can, to the speaker on the left can.

The right hand speaker connects to the right audio-in at the right can.

Once connected, wrap exposed joints with insulating tape and push the speakers in.
Because of the rim on the can, the foam must be pushed sideways (hence the need for trimmed edges) then rotated into place. It's a firm friction-fit.

A piece of PVC tubing was cut to fit the inner rims of both cans, cut lengthways it holds it's self in place no problem.

The other end of the curly phone cable was soldered to a standard stereo audio jack

Step 5: In Conclusion

These work fine from my PC, but they're not loud.
They are rather comfortable too, not that you'd expect it.
Running through a small amp makes them much louder, but as you might imagine, yes they do sound "tinny".

Comments

author
usafbrat made it! (author)2013-07-25

I was planning to make this.

author
Clayton H. made it! (author)2009-09-18

The first picture makes you look like les claypool.

author
lemonie made it! (author)lemonie2009-09-19

I wasn't trying, but you mean like this? L

claypool.jpg
author
Clayton H. made it! (author)Clayton H.2009-09-19

Yea or like the one at the top of his website.

author
freeza36 made it! (author)freeza362013-02-24

agreed

author
zelback1 made it! (author)2012-10-03

In terms of the 'tinny" sound, have you tried using tapering glass cups? I used this with a mini-speaker plugged into my ipod, and it got so loud that I could hear it in every corner of my house and even outside for 20 feet. I actually had a neighbor ask me "What song is that you've got playing in there?"
Awesome.

Sincerely yours,
Zelback1

author
zelback1 made it! (author)2012-10-03

LOVE the first photo, dude. The glasses and the "cans" with the perfect goatee make you look like you should be wearing an aviators scarf and jacket, with the leather chill-cap under your arm as you walk away unscathed from a burning biplane. (Yes, I have an active imagination.) But seriously, EPIC!

author
blkhawk made it! (author)2012-09-27

You look like Guy Fawkes!

author
The Locksmith made it! (author)2011-05-15

You look so awesomely hip in the first photo. <3

author
lemonie made it! (author)lemonie2011-05-15


Thanks, but I have since shed the hair...

L

author
The Locksmith made it! (author)The Locksmith2011-05-16

awww, did you at least keep the sunglasses?

author
lemonie made it! (author)lemonie2011-05-16


Yes, but I got a new pair.

L

author
Leemister made it! (author)2011-03-29

This is clever. But can the sound fill a HUGE room?

author
lemonie made it! (author)lemonie2011-03-29


No, just your head.

L

author
Leemister made it! (author)Leemister2011-03-29

Oh. Well I think I might try this out. I collect headphones and stuff so, this will make it be alot cooler. THANKS!

author
power made it! (author)2010-08-22

great cans! soundstage improved well :D

author
Dr Qui made it! (author)2010-07-11

Two large soup cans (Lidl chicken, vegetable & pasta - it's OK) LOL Agreed... Have yet to find a canned chicken product that was more than OK, chicken don't can well does it? LOL Andy.

author
lemonie made it! (author)lemonie2010-07-11


It's cheap nourishment and that's about all that can be said about it...

L

author
MissBetsy made it! (author)2010-04-25

HAHAHAHAHAHAHAHAHAHA
that is just to cool :)
I had to give it an extreme "funny" rating. I wonder if lining the cans with e.g. neoprene would make them sound less 'tinny' Love your project!

author
Perkinator made it! (author)2009-10-27

Is that you on the picture?
WOW.

author
lemonie made it! (author)lemonie2009-10-28

Yes.

L

author
brian3140 made it! (author)brian31402010-03-19

Haha sick... I was looking for an instructable with you in it, cuz i see you everywhere on the site, and yur lil icon guy clearly isn't you lol.... I needed a face to go with the name, "lemonie".
     Keep up the good work!

author
lemonie made it! (author)lemonie2010-03-19

I still look pretty much like that...

L

author

 Its scary 'cause you look a lot like my Dad!

author
riverreaper made it! (author)riverreaper2009-12-13

thats funnie i didnt know of the can term or i might of done my idea difernt , i needed a way to record right an left an contained that i could have room noise not interfearing , i put a mikeheadset with the speakers detached from the headband an the mike inbetween them inside a 32oz espresso cup an muffling stuffing all around them the wire comes out the straw hole , guess i shoulda instru. it befor all that electrical tape went on lol

author
lemonie made it! (author)lemonie2009-12-14

I like the sound of that.

L

author
butterflycookies made it! (author)2009-09-29

i tried to use soda cans. bad idea

author
lemonie made it! (author)lemonie2009-09-29

They're not as stiff are they? L

author
lemonie made it! (author)2009-09-17

If I had I would have replied by now. I'll PM you with a fix L

author
Punkguyta made it! (author)Punkguyta2009-09-17

I was gonna say, how bout you try pm'ing me, but apparently you already have, but It still says 0

author
lemonie made it! (author)lemonie2009-09-17

Bugger. No stuck... L

author
Punkguyta made it! (author)2009-09-16

This is actually an interesting idea, I would try mounting woofers the size of the diameter of the soup cans inside the cans, thus creating some potentionally ear damaging cans.

author
lemonie made it! (author)lemonie2009-09-16

Yes, I have a pair of those, so I've got long-term plans for "Super Soup-Cans" L

author
Punkguyta made it! (author)Punkguyta2009-09-17

Make sure they have some kind of vents in the rear of them so they don't act like pressure chambers :-S Btw, did you get my Pm lemonie?

author
lemonie made it! (author)lemonie2009-09-17

Hi man, not yet I'm afraid... L

author
Punkguyta made it! (author)Punkguyta2009-09-17

I'll be irate if my pm's aren't working either

author
lil jon168 made it! (author)2009-09-06

lol u look like a white snoopdog

author
Punkguyta made it! (author)Punkguyta2009-09-17

It's true, he kind of does, doesn't he?

author
lemonie made it! (author)lemonie2009-09-06

OK, thanks L

author
butterflycookies made it! (author)2009-09-10

these are pimp in defination!

author
butterflycookies made it! (author)2009-09-08

this is more pimp than the wookie gun

author
isaac! made it! (author)2009-09-01

tuna cans!

author
albylovesscience made it! (author)albylovesscience2009-09-04

hopefully this can doesn't find you

retarded cats.jpg
author
Goodhart made it! (author)Goodhart2009-09-04

You might end up with an entourage of cats following you about even after extensive can washings :-)

author
thepelton made it! (author)thepelton2009-09-01

I agree with Isaac!

author
Goodhart made it! (author)2009-09-04

Speaking of getting creative, one could bend the cans into the shapes of large bolt heads, and really give a freaky appearance to the whole thing :-)

author
Goodhart made it! (author)2009-08-31

If you saw them in half, you create a possible method of accidental lobotomy on both sides of your head :-) It would be extra difficult to get the edge turned down.

author
Warlrosity made it! (author)Warlrosity2009-09-03

Oooh, a new display picture

author
lemonie made it! (author)lemonie2009-08-31

Mmm - sort of ultrasonic circular blades? L

author
Goodhart made it! (author)Goodhart2009-08-31

Hmm, not even a need for ultrasonic, the base would vibrate it enough to rattle it a bit a remove one's ears.....the hard way :-) But only if you would cut them in half as cm suggested :-)

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Bio: I'm an experimentalist, a scientist and I have a tendency to do things just for the sake of doing them, or to find out ... More »
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