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<blockquote data-quote="Craig Hauber" data-source="post: 74045" data-attributes="member: 272">Re: Hey digital console users don&#039;t forget your UPSI thought that cheap UPS&#039;s were predominantly square-wave in output?&nbsp; I can hear nasty-buzz noises coming from power supplies even on computer gear that make me feel like damage is being done. (It&#039;s like running your gear off a lighting-dimmer!)If you don&#039;t want to get a costly full sine-wave output unit then I&#039;m thinking no UPS is better than a cheap one.(And even some sine-wave units don&#039;t look all that great on a &#039;scope when loaded)Detailed spec-sheets and specifics on the cheap-ones are very &quot;monster-cable-esque&quot; as mentioned previously.The answer is simple:&nbsp; Do not use a &lt;$200 UPS on your $25,000 digital console! (or a $45 one on your $8000 Stage-box)Also, protection of gear aside, how about dropping a show because the UPS fails!&nbsp; Not unreasonable considering that cheap ones are intended for stationary under-desk home use.I can&#039;t understand why console manufacturers don&#039;t offer optional external UPS type technology specifically matched for their boards?&nbsp; They all offer standby external PSU&#039;s with switch-over technology or shared-redundant, why not an external UPS unit that deals with the DC rails directly?&nbsp; It could even integrate on-screen so you can get warnings and battery status display.&nbsp; (Seems like something they could make good sales on)</blockquote>

[QUOTE="Craig Hauber, post: 74045, member: 272"] Re: Hey digital console users don't forget your UPS I thought that cheap UPS's were predominantly square-wave in output? I can hear nasty-buzz noises coming from power supplies even on computer gear that make me feel like damage is being done. (It's like running your gear off a lighting-dimmer!) If you don't want to get a costly full sine-wave output unit then I'm thinking no UPS is better than a cheap one. (And even some sine-wave units don't look all that great on a 'scope when loaded) Detailed spec-sheets and specifics on the cheap-ones are very "monster-cable-esque" as mentioned previously. The answer is simple: Do not use a <$200 UPS on your $25,000 digital console! (or a $45 one on your $8000 Stage-box) Also, protection of gear aside, how about dropping a show because the UPS fails! Not unreasonable considering that cheap ones are intended for stationary under-desk home use. I can't understand why console manufacturers don't offer optional external UPS type technology specifically matched for their boards? They all offer standby external PSU's with switch-over technology or shared-redundant, why not an external UPS unit that deals with the DC rails directly? It could even integrate on-screen so you can get warnings and battery status display. (Seems like something they could make good sales on) [/QUOTE]

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