Introduction: Cheap and Simple Mp3 or IPod Speakers
Here's a way to make some simple and cheap speakers for your iPod or mp3 player.
Step 1: You Will Need:
mp3 headphones
hacksaw
plastic martini glasses
tape
mp3 player (of course!)
Step 2: Cut the Speaker Cone
Separate the martini glass halves. Use the top half and cut off a sufficient amount to fit the earphone. It is better to start smaller at first. You can always cut more off, but it is difficult to put some back on!
Step 3: Place the Earphone and Secure
Put the earphone in the speaker cone and secure with the tape.
Step 4: Plug and Play!
With proper placement and finding the "sweet spot", it can be heard from an amazing distance!
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12 Comments
11 years ago on Step 3
Does this work with foam cups
13 years ago on Introduction
Very clever!
Years ago I did a passive megaphone, using an spent washing machine plastic rotor, whose shape was a horn as these martini glasses. I was surprised for the result.
Reply 12 years ago on Introduction
really? im not sure of doing it. Shouldnt have the form of an starbucks cup like in the other instructable? (I mean more tight and long)
Reply 12 years ago on Introduction
These old plastic washing machine rotors was horn shaped, with three longitudinal fins. One of them was ideal for handle, doing only an elongated hole for the four fingers. The other two was easily removables.
Reply 12 years ago on Introduction
The diameter was a little too large, so I cutted the edge 1/2 inch around.
Reply 11 years ago on Introduction
can u show im intrested
Reply 11 years ago on Introduction
Yes, you can see it (another equal) here: https://www.instructables.com/id/Free-megaphone-megfono-gratis/
12 years ago on Step 3
Though I haven't tried it, something else to try, instead of the tape, is to wedge or glue a thin piece of "noodle foam", like those noodle foam sticks you can buy a Wal Mart or similar store or closed cell foam might work even better, onto/into the glass. The ear bud could then easily be pressed into place and easily removed.
13 years ago on Step 3
it might look nicer with glue.....
Reply 13 years ago on Introduction
Well, I like to use them as regular earphones also.
Reply 12 years ago on Step 3
then tape is good :)
12 years ago on Introduction
Perhaps a 'slot in slot out' set-up would do. Just put more tape on then slice one side. It'll slip in and out with ease.