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  1. #1
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    Preventing / mitigating micro-duration power outages

    Is there a device or method for protecting audio equipment from micro-duration power outages? In my case, my Aurenders seem particularly sensitive to these sorts of events, as are my DACs. Last evening, for example, as a powerful cold front with blowing snow passed through, the municipal power "blipped" for maybe half a second at most, on at least a couple of different occasions. Not even enough for the lights to do more than flicker briefly without ever actually going dark, but the Aurenders "crashed", rebooted, went thru their somewhat lengthy drive-recovery process, and then had to be manually (button press) brought back online. I have whole-house surge protection at the main panel, but that handles excess power, not lack thereof. And these kinds of outages are so brief that a whole-house generator would never even come on line before it's over.

    The conventional option would be a battery backup of some kind, but I'm leery of adding a lo-fi device like a retail computer UPS to what I consider to be a reasonably solid and nice sounding audio power distribution setup. My mind turns to the idea of a supercapacitor that wouldn't even have to be that "super" if it only has to deal with low-power devices for a very short duration power dip. In an industry seemingly obsessed with big capacitors in amps and other gear, I'm honestly a little surprised that there isn't such a feature already in the unit if it's so sensitive to these kinds of minor fluctuations. And switching everything over to battery power all the time with a Stromtank or similar isn't a path I really want to go down.

    Or maybe the right answer is that this really isn't a big deal and isn't going to harm any of my gear, so just don't worry about it.

    Feel free to move this to the Power sub-forum if that's a more appropriate location.
    Jeff

    Main System
    Streamer/Server: Aurender N100H; Disc Player: Oppo UDP-205; DAC: PS Audio Directstream Jr; Preamp: Wyred 4 Sound STP-SE Stage 2; Power Amp: ATI AT542NC; Speakers: Focal Sopra No. 3; Cables: Wireworld, Kimber, Cullin; Power: Ansuz Mainz8 X-TC, PS Audio Dectet, Furutech outlets

    Basement Media Room
    Streamer/Server: Aurender N100SC; Disc Player: Panasonic DB-UP9000; Surround Pre/Pro: Monoprice Monolith HTP-1; Power Amps: Apollon NC1200SL (custom 3-channel w/Sparkos SS2590 op amps), Apollon AS3600 6-channel; Speakers: Focal Kanta No. 3, Kanta Center, 300 ICW8 (x6); Subwoofer: Rythmik F18SE (x2); Cables: Wireworld, BlueJeans; Power: Torus RM20, Furman Elite 20PFi; Room Correction: Dirac Live w/ Bass Control; Video: Sony 77" A9G OLED

  2. #2
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    Re: Preventing / mitigating micro-duration power outages

    My utility has this, which isn't about outages/brown-outs as much as surges. https://www.tampaelectric.com/reside...ge-protection/

    Someone more knowledgeable can say whether surges are worse for electronics than brown-outs, or the other way around. I always thought surges were the bigger problem.

    Only thing I'm aware of to protect against brown-outs (and surges) would be a UPS. I've seen many recommendations against the plug-in variety but maybe the larger units that sit between the mains and the breaker (some, the breakers are actually in/part of the unit) would somehow be less offensive.
    Lumin X1 | Enleum 23r | Scansonic MB3.5 B
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  3. #3
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    Re: Preventing / mitigating micro-duration power outages

    Do high end UPS have a quick enough switchover to keep an Aurender from shutting down?
    Marty

    Aurender N20 / SonicTransporter i7 / Roon
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  4. #4
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    Re: Preventing / mitigating micro-duration power outages

    With a true UPS power is always delivered from the battery, so interruption to the a/c should never interrupt power delivery to the circuit. In other words, there is no switch over.

    For instance required for datacenter-level computing equipment, where any interruption to power would be catastrophic.

    Such as Vertiv Liebert PSI5 Lithium-Ion UPS | Li-Ion Batteries
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  5. #5
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    Re: Preventing / mitigating micro-duration power outages

    Hi
    I have Aurender N100H plugged into Eaton 3S 550 UPS. We have power blinks all the time, usually <0.1 second. The dip is not enough to cause N100 to reboot, after the blink it still appears normal ready to play. But it either won't play or won't communicate with USB DAC and also gets stuck trying to do soft power off. Only hard power off reboot with rear switch will restore function. But power off while hung forces a rescan of HDD after these events which is not good for it to shut down like that. These Eaton UPS are normal $100 kind, not the "online" type, but the switchover time is still fast enough for all my other electronics and computers. My Legacy Wavelet preamp with Pi inside is not on UPS and rides it without problem. Only the Aurender chokes. I wrote to support@aurender a week ago but not had a reply. I could try an "online" type UPS which is always on so there's no switch over time but they are pricey and the output power quality isnt that great. "pure sine" isnt "audiophile pure," Still 2% distortion.

    I considered adding more storage capacitance to the PS inside the Aurender so it can coast for 1/2 second without power but I'm trying to break my DIY bad habits. Worth considering though if there's room inside.

    A friend with N20 said his is not as sensitive to power blips.

    Rich

  6. #6
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    Re: Preventing / mitigating micro-duration power outages

    Maybe put an online UPS behind the circuit (ie not plugged into the outlet, I think you understand based on your post but if not I'll try to explain better), and a power conditioner plugged in at the wall to clean up the power coming out of the receptable. Not an expert by any stretch just suggesting a solution that seems semi logical based on your problem.
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  7. #7
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    Re: Preventing / mitigating micro-duration power outages

    Yes I think technically that is the correct approach. Something like an inline always-on UPS, followed by a PSAudio Powerplant. Only problem is that's 3x my investment in the N100. LOL. But I could power the whole system through that. Thanks jmusica

  8. #8
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    Re: Preventing / mitigating micro-duration power outages

    I realized this morning that my media room Aurender actually did not go offline in our recent power events, though the one in the 2 channel system on an Ansuz distributor did. The one that stayed up is plugged into a Torus RM20 isolation transformer. Perhaps that unit has enough internal capacitance to ride out a micro-dip like this, whereas the Ansuz is really just more of a nicely filtered power strip? This is kind of hard to diagnose since there’s no easy way to test without the “help” of the power company…
    Jeff

    Main System
    Streamer/Server: Aurender N100H; Disc Player: Oppo UDP-205; DAC: PS Audio Directstream Jr; Preamp: Wyred 4 Sound STP-SE Stage 2; Power Amp: ATI AT542NC; Speakers: Focal Sopra No. 3; Cables: Wireworld, Kimber, Cullin; Power: Ansuz Mainz8 X-TC, PS Audio Dectet, Furutech outlets

    Basement Media Room
    Streamer/Server: Aurender N100SC; Disc Player: Panasonic DB-UP9000; Surround Pre/Pro: Monoprice Monolith HTP-1; Power Amps: Apollon NC1200SL (custom 3-channel w/Sparkos SS2590 op amps), Apollon AS3600 6-channel; Speakers: Focal Kanta No. 3, Kanta Center, 300 ICW8 (x6); Subwoofer: Rythmik F18SE (x2); Cables: Wireworld, BlueJeans; Power: Torus RM20, Furman Elite 20PFi; Room Correction: Dirac Live w/ Bass Control; Video: Sony 77" A9G OLED

  9. #9
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    Re: Preventing / mitigating micro-duration power outages

    I live in Florida just north of Tampa. With out of control development in the area and our sometimes crazy weather we have electrical blips that aren't friendly with my NAS, streamer and DAC.

    Like jmusica, I had the power company put a surge protection on our meter.

    I also added a TrippLite SU1500XL that puts out a pure sine wave. This feeds a DC blocker to clean any junk out of the electricity. That feeds a Shynata Hyrdra that powers every thing on the front end.

    During those electrical blips everything that is left powered on is fine.
    Synology 1019D+ - SGC Sonictransporter I9 w Roon/HQ Player- UltraRendu- PBD Stream IF to Playback Designs MPS5 via fiber optic - ARC 40th Anniversary Pre - ARC 610 T's - Martin Logan CLX's - 4 Martin Logan Depth i Subs - Shunyata Hydra, DIY PCOCC interconnects, speaker cables and power cords with Furutech terminations. Audio Quest Vodka CAT 7's. Acoustically treated room with one permanent chair.

  10. #10
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by brad225 View Post
    I live in Florida just north of Tampa. With out of control development in the area and our sometimes crazy weather we have electrical blips that aren't friendly with my NAS, streamer and DAC.

    Like jmusica, I had the power company put a surge protection on our meter.

    I also added a TrippLite SU1500XL that puts out a pure sine wave. This feeds a DC blocker to clean any junk out of the electricity. That feeds a Shynata Hyrdra that powers every thing on the front end.

    During those electrical blips everything that is left powered on is fine.
    Sounds like a well thought out setup.

    I'm not too far from you by the way, Seminole Heights, so I get what you're saying about power here. Power at the office in Westshore was far worse though so a lot of my experience revolves around protecting a datacenter, I haven't had many blips at home in SH.
    Lumin X1 | Enleum 23r | Scansonic MB3.5 B
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  11. #11
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    Re: Preventing / mitigating micro-duration power outages

    I thought I heard my turntable skip a quarter revolution the other nite ...........
    Cheers ! …. Dave

  12. #12
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by nc42acc View Post
    Do high end UPS have a quick enough switchover to keep an Aurender from shutting down?
    The Aurender already has a built-in UPS and it does what is supposed to just as Jeff described in his original post.

  13. #13
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by mikado463 View Post
    i thought i heard my turntable skip a quarter revolution the other nite ...........
    rotfl....🤣

  14. #14
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by 2FlyingYorkies View Post
    I realized this morning that my media room Aurender actually did not go offline in our recent power events, though the one in the 2 channel system on an Ansuz distributor did. The one that stayed up is plugged into a Torus RM20 isolation transformer. Perhaps that unit has enough internal capacitance to ride out a micro-dip like this, whereas the Ansuz is really just more of a nicely filtered power strip? This is kind of hard to diagnose since there’s no easy way to test without the “help” of the power company…
    I have a suggestion: Get a Shunyata power distributor. Plug your Aurender into it. With that and with the UPS in the Aurender, you'll be covered just fine.

  15. #15
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    Re: Preventing / mitigating micro-duration power outages

    The speed control on your turntable is going to malfunction for this post Dave.

    Quote Originally Posted by Mikado463 View Post
    I thought I heard my turntable skip a quarter revolution the other nite ...........
    Marty

    Aurender N20 / SonicTransporter i7 / Roon
    MSB Premier
    Constellation Inspiration Preamp 1.0 / Mono 1.0
    Dynaudio Confidence 50 / SVS SB13 Ultra
    PS Audio Powerplant 15

  16. #16
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by Mikado463 View Post
    I thought I heard my turntable skip a quarter revolution the other nite ...........
    Yea, it's called a cat nap.... mine is SOTA.
    McIntosh C49, MR85, MC7100W, R778 | KEF LS50 Meta w/S2, KC62 (x2) | Rega RP8, Ania Pro, NEO PSU | Technics SL-1500C | Audio Technica VM740ML | Hexmat Eclipse, Yellow Bird, Molekula, Molekula Mini | Pro-Ject VC-E | Falcon NW PC Server (Roon Core & HQ Player) | Microsoft Surface Pro 6 (Roon Controller) | Abyss Diana Phi | HeadAmp GS-X Mini | Astell&Kern SE200 | Oppo BDP105 | AudioQuest Niagara 1000

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  17. #17
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by nc42acc View Post
    The speed control on your turntable is going to malfunction for this post Dave.
    Marty, at my age a lot things start to malfunction !
    Cheers ! …. Dave

  18. #18
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by Mikado463 View Post
    I thought I heard my turntable skip a quarter revolution the other nite ...........

    MOM...... Daves making fun of us again.
    Synology 1019D+ - SGC Sonictransporter I9 w Roon/HQ Player- UltraRendu- PBD Stream IF to Playback Designs MPS5 via fiber optic - ARC 40th Anniversary Pre - ARC 610 T's - Martin Logan CLX's - 4 Martin Logan Depth i Subs - Shunyata Hydra, DIY PCOCC interconnects, speaker cables and power cords with Furutech terminations. Audio Quest Vodka CAT 7's. Acoustically treated room with one permanent chair.

  19. #19
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by brad225 View Post
    MOM...... Daves making fun of us again.
    Oh no, say it ain't so .
    McIntosh C49, MR85, MC7100W, R778 | KEF LS50 Meta w/S2, KC62 (x2) | Rega RP8, Ania Pro, NEO PSU | Technics SL-1500C | Audio Technica VM740ML | Hexmat Eclipse, Yellow Bird, Molekula, Molekula Mini | Pro-Ject VC-E | Falcon NW PC Server (Roon Core & HQ Player) | Microsoft Surface Pro 6 (Roon Controller) | Abyss Diana Phi | HeadAmp GS-X Mini | Astell&Kern SE200 | Oppo BDP105 | AudioQuest Niagara 1000

    “One of the great challenges in life is knowing enough to think you're right but not enough to know you're wrong”
    ― Neil deGrasse Tyson

  20. #20
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    Re: Preventing / mitigating micro-duration power outages

    Quote Originally Posted by brad225 View Post
    MOM...... Daves making fun of us again.
    LOL, never Brad....... well at least not of my Logan buddies !
    Cheers ! …. Dave

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Preventing / mitigating micro-duration power outages

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