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Shield a speaker box
Shield a speaker box
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Old 20th February 2009, 07:08 PM   #1
revans is offline revans  New Zealand
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Join Date: Aug 2008
Default Shield a speaker box

Hey there, I'm making a portable boombox at the moment and before I build the enclosure, I was wondering if I could do something about the buzz I get when my phone (which I use as the audio input so is always nearby) gets a txt message or connects to the mobile network.

Would I be able to shield the speakers by lining the interior walls of the enclosure with some sheet metal? Would this have any detrimental effect on sound? Thanks for any help or other suggestions.
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Old 21st February 2009, 04:04 AM   #2
star882 is offline star882  United States
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Join Date: Mar 2007
Digital amplifiers are almost completely immune to EMI. If you don't have a digital output on your device, I've heard that hybrids do almost as well.
"Fully on MOSFET = closed switch, Fully off MOSFET = open switch, Half on MOSFET = poor imitation of Tiffany Yep." - also applies to IGBTs!
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