Powering large speakers with wave shield

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adielfernandez
 
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Powering large speakers with wave shield

Post by adielfernandez »

Hello everyone,

I just bought a wave shield and I'm trying to use it to power some speaker cones I pulled out of a broken home stereo system. I dont really know the specs of the speakers though I can post a photo of them if that helps. I got the speakers to work before using the wave shield by connecting the arduino to a transistor and switching a 12V source to the speakers using the tone() function. It worked beautifully and was super loud!

I figured I could hook up the wave shield output to the same transistor but it didnt work. I now realize its probably because the wave shield puts out an analog signal and is not really getting the full 5 volts to trigger the gate on the transistor like the digital signal from the tone() function did.

I am trying to put the speakers in a small box to make a "lighting box", a box that simulates thunder and lighting with sound and high power LEDs. How do I power these great little loud speaker cones with the wave shield?

Thanks.

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adafruit_support_bill
 
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Re: Powering large speakers with wave shield

Post by adafruit_support_bill »

An audio amplifier such as this one will do the job: http://www.adafruit.com/products/987

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esperanto
 
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Re: Powering large speakers with wave shield

Post by esperanto »

Any idea when the amplifier in question will be back in stock? It looks like it's been unavailable most of the month. Thanks!

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adafruit_support_bill
 
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Re: Powering large speakers with wave shield

Post by adafruit_support_bill »

The availability estimate on the product page is our best guess. We are ramping up our production lines after the move.

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