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Post by tom9933 on May 24, 2019 7:39:24 GMT -5
Hello,
I'm in the process of wiring the new rack and I keep going back and forth on this... I have a UPS in the rack for the DVR as it's very sensitive to power burps. Normally, the rule is not to put your high end audio gear on a computer UPS, but I'm wondering with the RMC being PC based and having a pretty long boot up process should I go against that logic? Thoughts, comments??? Has anyone done an AB comparison yet?
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Post by donh50 on May 24, 2019 9:50:37 GMT -5
If you have a typical consumer UPS it is only active during a power outage and will not affect the power otherwise (save for some surge suppression and maybe some filtering). I would put the RMC-1 on it and that way if there is a short glitch the RMC-1 won't crash and if longer you'll have time to power it down cleanly.
I have put all of my low-level components (and the TV) on UPS units for many years. No adverse effects, and not having everything crash during a short outage is a blessing.
HTH - Don
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Post by RichGuy on May 24, 2019 10:31:35 GMT -5
UPS systems normally supply some of the dirtiest, noisiest power, I would not use one for HT or AV use. I use a nice UPS system for my desktop computer but not my on HTPC or my XMC-1 I use a power conditioner with them.
I've done a lot of comparing, research and auditioning what my system was plugged into, comparing many power conditioners, direct wall, power strips and yes also my computers 1500VA UPS. There was a lot of differences between the different sources and using the UPS was definitely the worst. I'd recommend trial and compare to see what affect anything you plug your system into has as some do poorly affect how the system sounds. The most noticeable differences are usually found in the bass (impact and punch) but the overall noise floor and detail are also affected.
While amplifiers are affected the most, processors, pre amps and other sources are also affected by what is powering them.
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Post by millst on May 24, 2019 11:02:37 GMT -5
I use one for my some of my gear, including the XMC1, to avoid a long interruption if there is a brief power flicker. As donh50 said, most basic UPS devices are switching and have zero affect on power quality when the power is not interrupted. I wouldn't worry about "dirty" power from a switching UPS. I'm sure that negative affect is less than that of a sudden power drop then the following spike.
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Post by tom9933 on May 24, 2019 15:24:01 GMT -5
Ok you guys are thinking what I'm thinking I'll likely do some testing... Thanks for the input!!!
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Post by vcautokid on May 24, 2019 16:42:13 GMT -5
Only use power conditioners and backup power for audio gear exlusively. Furman makes some great one along with Panamax and so on. Another one is Brickwall power conditioners. Computer UPSs were not made for audio gear ideally.
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Post by donh50 on May 24, 2019 21:19:19 GMT -5
An inexpensive UPS does not provide the cleanest power, true, but remember that is only when the line power is off. During normal operation it is not powering your devices, the wall voltage is just passed through. You can spend more and get one with better switching/filtering to provide "true" sine waves (about 2x the cost) but you really only need that if you are going to be running off the UPS constantly. For protection during a brief blackout it will work fine.
Short-term outages and rapid transient surges that result can cause problems and premature failures. If you have power that gets interrupted quasi-frequently a UPS is a good investment to ride out the short outages (less than a second to minutes) and provide time to shut down in an orderly fashion for longer outages.
I would not plug a power amp into a UPS; they do monitor current flow and may not handle the current surges (especially at turn-on) unless you get a big one.
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Post by martindktm on May 24, 2019 21:59:55 GMT -5
Ill step in... I'm not a pro and know nothing about the RMC-1 but... no one can have as much variation as I have. I run an off the grid business and live 100km from any town. I run on generator all year long. Internet is via satellites and phone via short wave or something like that... We have 4 generators an we switch from one to another from time to time to do maintenance on them. Power outage every morning to check oil and stuff and we put power back on. Voltage is varying from 108 to 124 volts and cycle from 58 to 62 hertz all the time. As soon as a freezer start, microwave, water pump or welding machine or anything that is power hungry start voltage and cycle drop or raise till the generator catch up (50 000 watts units). I run all sensitive electronic equipment's on different standard ''amazon or Costco'' UPS. If voltage gets too low, UPS steps in. Voltage too high it also steps in. And also run stuff while we power off the gen for the morning check up.
We bought and run this place like that for 3 years now and nothing has blown or gave up yet. If you have an UPS close or over 1000W of capacity you would be amaze of all the stuff it can run... IT run all computers, cash network, audio system, phone line, router stuff and more. I think I have 4 or 5 of them...
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Post by garbulky on May 24, 2019 22:51:42 GMT -5
Ill step in... I'm not a pro and know nothing about the RMC-1 but... no one can have as much variation as I have. I run an off the grid business and live 100km from any town. I run on generator all year long. Internet is via satellites and phone via short wave or something like that... We have 4 generators an we switch from one to another from time to time to do maintenance on them. Power outage every morning to check oil and stuff and we put power back on. Voltage is varying from 108 to 124 volts and cycle from 58 to 62 hertz all the time. As soon as a freezer start, microwave, water pump or welding machine or anything that is power hungry start voltage and cycle drop or raise till the generator catch up (50 000 watts units). I run all sensitive electronic equipment's on different standard ''amazon or Costco'' UPS. If voltage gets too low, UPS steps in. Voltage too high it also steps in. And also run stuff while we power off the gen for the morning check up. We bought and run this place like that for 3 years now and nothing has blown or gave up yet. If you have an UPS close or over 1000W of capacity you would be amaze of all the stuff it can run... IT run all computers, cash network, audio system, phone line, router stuff and more. I think I have 4 or 5 of them... Interesting read! |
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Post by tom9933 on May 25, 2019 8:04:43 GMT -5
Ill step in... I'm not a pro and know nothing about the RMC-1 but... no one can have as much variation as I have. I run an off the grid business and live 100km from any town. I run on generator all year long. Internet is via satellites and phone via short wave or something like that... We have 4 generators an we switch from one to another from time to time to do maintenance on them. Power outage every morning to check oil and stuff and we put power back on. Voltage is varying from 108 to 124 volts and cycle from 58 to 62 hertz all the time. As soon as a freezer start, microwave, water pump or welding machine or anything that is power hungry start voltage and cycle drop or raise till the generator catch up (50 000 watts units). I run all sensitive electronic equipment's on different standard ''amazon or Costco'' UPS. If voltage gets too low, UPS steps in. Voltage too high it also steps in. And also run stuff while we power off the gen for the morning check up. We bought and run this place like that for 3 years now and nothing has blown or gave up yet. If you have an UPS close or over 1000W of capacity you would be amaze of all the stuff it can run... IT run all computers, cash network, audio system, phone line, router stuff and more. I think I have 4 or 5 of them... Thats a wild setup!!! The argument against the UPS units is that the sign wave they put out is not smooth it has jagged edges and there is talk that degrades the quality of the sound. Having said that in your case I'd definitely choose a UPS over a brown out or off frequency power... |
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Post by millst on May 25, 2019 11:43:24 GMT -5
If the power is out, degraded audio still sounds better than no audio  |
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Post by martindktm on May 25, 2019 13:48:35 GMT -5
Generator on or off, Ups on or off I can't hear no difference at all in my current system. It play's sweet, good and nice all the time. No computer crash or nothing weird anywhere.
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TJR
Minor Hero
Posts: 15
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Post by TJR on May 25, 2019 19:14:57 GMT -5
I have my entire A/V system (XMC-1, XPA-5, Oppo, TV, and everything else) plugged into a Cyberpower OR1500PFCRT2U 1500VA/1050W sine wave output UPS which, in turn, is plugged into a Brickwall inductive surge protector. It might be overkill, but it's been operating flawlessly for years now. The main reason I went to such extremes is due to the fact that I wound up having to replace my old Sunfire receiver after a lightning strike (I live in the mountains and close strikes are a common occurrence). Yes, a cheap UPS puts out a "pseudo-sine wave", but it doesn't cost that much more to get a UPS that outputs a true sine wave. I can't tell any difference in sound quality between normal operation and when the UPS kicks in. It also compensates with brown-outs (another common occurrence up here).
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