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Dirty power wrecking the sound...
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<blockquote data-quote="Rob Timmerman" data-source="post: 99196" data-attributes="member: 172"><p>Re: Dirty power wrecking the sound...</p><p></p><p></p><p></p><p>Any noise on line or neutral (harmonic content) isn't going to make it past the power supply in the unit. Noise on the ground wire could make its way into an audio path if a piece of equipment ties safety ground (protective earth) to signal (audio) ground. Equipment that dumps significant current onto a protective earth conductor is either poorly designed or failed (failed MOVs in power strips are a pretty standard cause). A GFCI is a good way to check for excessive ground leakage, as is getting shocked.</p><p></p><p>And this is all referring to conducted issues, not magnetically coupled issues such as you might get from adjacent cables.</p></blockquote><p></p>
[QUOTE="Rob Timmerman, post: 99196, member: 172"] Re: Dirty power wrecking the sound... Any noise on line or neutral (harmonic content) isn't going to make it past the power supply in the unit. Noise on the ground wire could make its way into an audio path if a piece of equipment ties safety ground (protective earth) to signal (audio) ground. Equipment that dumps significant current onto a protective earth conductor is either poorly designed or failed (failed MOVs in power strips are a pretty standard cause). A GFCI is a good way to check for excessive ground leakage, as is getting shocked. And this is all referring to conducted issues, not magnetically coupled issues such as you might get from adjacent cables. [/QUOTE]
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