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Low Earth Orbit
DIY Audio
Line Level Isolation Transformers
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<blockquote data-quote="Jason Lavoie" data-source="post: 49433" data-attributes="member: 159"><p>Re: Line Level Isolation Transformers</p><p></p><p></p><p></p><p>if this is a passive box, made of metal, why shouldn't it be connected to pin 1?</p><p>the purpose of the box (if the builder spent the extra bucks on metal) is to shield the internals, so it should by definition be grounded.</p><p>If the shield of the XLR connected to it is grounded, I can't picture any scenario where it would be harmful to have this box connected to the shield of the incoming XLR (at least) and why not continue the ground through?</p><p>the unbalanced output could be lifted by a capacitor, but leaving the entire chassis of the device (active or not) floating doesn't help anything..</p><p></p><p>(I could be wrong.. although I am signed up for Bill Whitlock's course at Infocomm and after that I hope to be right 100% of the time) <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Jason</p></blockquote><p></p>
[QUOTE="Jason Lavoie, post: 49433, member: 159"] Re: Line Level Isolation Transformers if this is a passive box, made of metal, why shouldn't it be connected to pin 1? the purpose of the box (if the builder spent the extra bucks on metal) is to shield the internals, so it should by definition be grounded. If the shield of the XLR connected to it is grounded, I can't picture any scenario where it would be harmful to have this box connected to the shield of the incoming XLR (at least) and why not continue the ground through? the unbalanced output could be lifted by a capacitor, but leaving the entire chassis of the device (active or not) floating doesn't help anything.. (I could be wrong.. although I am signed up for Bill Whitlock's course at Infocomm and after that I hope to be right 100% of the time) :) Jason [/QUOTE]
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