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lightning protection for powered speakers
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<blockquote data-quote="Jason Lavoie" data-source="post: 100655" data-attributes="member: 159"><p>Re: lightning protection for powered speakers</p><p></p><p></p><p></p><p>I was called in once to fix a system in a store where lightning hit the outside neon sign, blew it up, then jumped almost a FOOT to the nearby speaker wire, toasted every speaker on the line, burned the wire for about 100' leaving scorch marks along the drywall where it was stapled and bigger burn marks near every metal stud, burnt out a wall mounted volume control, and also took out the amplifier which was after about another 100' of wire, and on another floor, and in an IT room where everything else was fine.</p><p></p><p>The point is: Lightning will jump through/across/around a switch or any other protection device like it's not even there.. most protection devices are to help with surges etc caused by lightning strikes somewhere else.</p><p></p><p>The only way to literally protect your equipment from lightning is to provide a better place for the lightning to strike (ie: lightning rods)</p><p></p><p>PS: if there are no burn marks, I would suspect you had a surge, not a lightning strike..</p><p>Jason</p></blockquote><p></p>
[QUOTE="Jason Lavoie, post: 100655, member: 159"] Re: lightning protection for powered speakers I was called in once to fix a system in a store where lightning hit the outside neon sign, blew it up, then jumped almost a FOOT to the nearby speaker wire, toasted every speaker on the line, burned the wire for about 100' leaving scorch marks along the drywall where it was stapled and bigger burn marks near every metal stud, burnt out a wall mounted volume control, and also took out the amplifier which was after about another 100' of wire, and on another floor, and in an IT room where everything else was fine. The point is: Lightning will jump through/across/around a switch or any other protection device like it's not even there.. most protection devices are to help with surges etc caused by lightning strikes somewhere else. The only way to literally protect your equipment from lightning is to provide a better place for the lightning to strike (ie: lightning rods) PS: if there are no burn marks, I would suspect you had a surge, not a lightning strike.. Jason [/QUOTE]
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