Get surprisingly good sound from disposable picnicware with this easy to make and inexpensive Styrofoam Plate Speaker. Thanks go to José Pino for the original article in Make Magazine.
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Check out the Styrofoam Plate Speaker article MAKE 12 “Styrofoam Plate Speaker” & You can see that in our digital edition.
4 thoughts on “Weekend Project: Styrofoam Plate Speaker”
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The first thing I’m wondering is, if the fidelity could be improved by elevating the magnet off of the cardboard a bit to center it in the coil. This could be done with a round of foam, or something similar, with a diameter slightly smaller than the magnet. It’s a thought, anyway.
what do you think the minumum voltage for this to work is?
I could be wrong, but i think it’s possible to seriously damage your amplifier hardware if the speaker impedance is too low. Its like running a wire over a 9-v battery — too small a load results in lots of power lost as heat. It should probably be emphasized that the coil should read at least 6-8 ohms on your meter to be absolutely sure you won’t damage anything.
Less than 8 ohms is probably okay, since resistance is only half of the impedance equation, but since its difficult to measure the reactance of a coil over the audible spectrum without expensive equipment, its better to be safe than sorry.
Exactly why achieve this most people say Jango isn’t very described inside the acknowledgement? There are lots of replies that point out Jango. It truly is an array of referenced internet site in every with the replies.
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