Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums > AC Power and Grounding
Rackmount supercapacitor?
Tracy Garner:
Hi,
I did a small gig the other day with an X32 and a couple iTech8000. The available power was just under what I needed to run 120V. A couple times, the X32 rebooted while the iTech amps stayed on no problem. For situations like this, I would love to have a power conditioner type rack that will provide a second or two if 120v power were to dip (bass drum caused the dip I'm sure).
Does any rack power conditioner comes to mind that has a built-in capacitor they are not advertising?
Jeff Lelko:
What you need is a rackmount online double-conversion UPS. Since it’s essentially always on battery there’s zero latency, lag, or artifacts when venue service glitches. Mine is from Eaton and has never had a problem. They’re best used for consoles and other sensitive equipment - not amps. Hope this helps!
Dave Garoutte:
--- Quote from: Jeff Lelko on September 22, 2021, 03:10:24 PM ---What you need is a rackmount online double-conversion UPS. Since it’s essentially always on battery there’s zero latency, lag, or artifacts when venue service glitches. Mine is from Eaton and has never had a problem. They’re best used for consoles and other sensitive equipment - not amps. Hope this helps!
--- End quote ---
If you have room in your rack, you can mount a regular UPS in the bottom and just run the mixer on it.
Steve-White:
--- Quote from: Dave Garoutte on September 22, 2021, 03:18:09 PM ---If you have room in your rack, you can mount a regular UPS in the bottom and just run the mixer on it.
--- End quote ---
This +1. Ya don't need to go fully exotic. All my UPS's are used APC's from eBay. Buy 'em, test 'em and go.
Units in good condition are EXTREMELY reliable and last a LONG time. Buy WITHOUT batteries for three reasons: 1) Used batteries are junk, 2) Shipping cost for used batteries is excessive within the overall weight of a UPS and battery suppliers get a much better shipping rate, 3) Additional weight of batteries in a UPS during shipping make them much more susceptible to damage.
Jeff Lelko:
I'm not sure that I'd consider an online double-conversion UPS to be exotic. Excessive perhaps, but within the context of this thread it's the best thing I can think of that truly "fixes" bad power or momentary drop-outs without any downstream artifacts. Line-interactive UPS models can't say that, and when running no less than $30k+ of gear at FOH I'm happy to spend an extra $1k on an UPS knowing that what's downstream has good clean power.
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