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<blockquote data-quote="Tim McCulloch" data-source="post: 80182" data-attributes="member: 67">Re: Hey digital console users don&#039;t forget your UPSI&#039;m a big believer in UPS with AVR.The reason I asked what constitutes &quot;dirty power&quot; is because the term is thrown about a great deal, almost always without a description of the actual anomaly.Rob T&#039;s offering of waveform distortion is dirt.&nbsp; It&#039;s a by-product of a number of commercial and industrial products, from computers to variable speed/frequency motor control and is something where we seldom have control over the source(s).&nbsp; In Gabe Nashon&#039;s UPS comments, the generator&#039;s frequency instability was &quot;dirt&quot; to the UPS but would not have been dirt to the console PSU.Most of what I hear that is attributed to &quot;dirty power&quot; is actually bad gain staging and poor shielding in back line rigs or &quot;Pin 1 Problem&quot; devices in the PA/monitor system.</blockquote>

[QUOTE="Tim McCulloch, post: 80182, member: 67"] Re: Hey digital console users don't forget your UPS I'm a big believer in UPS with AVR. The reason I asked what constitutes "dirty power" is because the term is thrown about a great deal, almost always without a description of the actual anomaly. Rob T's offering of waveform distortion is dirt. It's a by-product of a number of commercial and industrial products, from computers to variable speed/frequency motor control and is something where we seldom have control over the source(s). In Gabe Nashon's UPS comments, the generator's frequency instability was "dirt" to the UPS but would not have been dirt to the console PSU. Most of what I hear that is attributed to "dirty power" is actually bad gain staging and poor shielding in back line rigs or "Pin 1 Problem" devices in the PA/monitor system. [/QUOTE]

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