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Passive amplifiers have been doing their acoustic trick ... Victrola was cutting edge. It’s pretty simple, really⮮. noise on the working end of a horn and you’re likely t... bit easier in the direction it’s pointed in. The conce...
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Passive amplifiers have been doing their acoustic trick since before the Victrola was cutting edge. It’s pretty simple, really– just make some noise on the working end of a horn and you’re likely to hear it a little bit easier in the direction it’s pointed in. The concept works in reverse, too.
This eco-amp from the folks at Eco Made is a die cut piece of 100% post consumer chipboard that you can fold together into a fully functional passive amplifier. It comes unassembled flat, so it’s easy to store until you’re ready to use it. [via gizmag]
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<p><a href="http://blog.makezine.com/?attachment_id=222053" rel="attachment wp-att-222053"><img scale="0" src="http://makezineblog.files.wordpress.com/2012/07/1-eco-amp-4.jpg" alt="" title="1-eco-amp-4" class="aligncenter size-full wp-image-222053" height="399" width="600"></a></p> <span class="embed-youtube" style="text-align: center; display: block;"><iframe class="youtube-player" type="text/html" src="http://www.youtube.com/embed/lwcjtY8lUdE?version=3&rel=1&fs=1&showsearch=0&showinfo=1&iv_load_policy=1&wmode=transparent" frameborder="0" height="357" width="580"></iframe></span> <p>Passive amplifiers have been doing their acoustic trick since before the Victrola was cutting edge. It’s pretty simple, really– just make some noise on the working end of a horn and you’re likely to hear it a little bit easier in the direction it’s pointed in. The concept works in reverse, too.</p> <p>This <a href="http://www.eco-made.com/eco-amp/">eco-amp</a> from the folks at <a href="http://www.eco-made.com/">Eco Made</a> is a die cut piece of 100% post consumer chipboard that you can fold together into a fully functional passive amplifier. It comes unassembled flat, so it’s easy to store until you’re ready to use it. [via <a href="http://www.gizmag.com/eco-iphone-amp/23097/">gizmag</a>]</p> |
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