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PM4000 trouble shooting help
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<blockquote data-quote="Richard McMenamin" data-source="post: 89459" data-attributes="member: 4407"><p>Re: Guess what I did today</p><p></p><p>Used an old Soundcraft Series 800B with similar noise issues.</p><p></p><p>On days when it was particularly bad I would take the output of an unused aux, patch it back into an unused channel, polarity reverse it, then feed it back into the auxes until they went quiet.</p><p></p><p>Assumes you have a spare aux bus, a spare channel, and that the noise is the same on every output.</p><p></p><p>Thankfully I have not had the need to do this in many years.</p></blockquote><p></p>
[QUOTE="Richard McMenamin, post: 89459, member: 4407"] Re: Guess what I did today Used an old Soundcraft Series 800B with similar noise issues. On days when it was particularly bad I would take the output of an unused aux, patch it back into an unused channel, polarity reverse it, then feed it back into the auxes until they went quiet. Assumes you have a spare aux bus, a spare channel, and that the noise is the same on every output. Thankfully I have not had the need to do this in many years. [/QUOTE]
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