i recently browsing for a brand new UPS for kronos... does a 50-100$ power supply will do it???
When i get to deep browsing about UPS, i found that there are 2 types of UPS, and this is my own description based on internet:
1. Simulated sine wave / square wave UPS
they exist on low end ups (at that 50-100$ price).. they will work for most equipment, but not ones which requires true sine wave. The input signal is different from output signal (on battery mode)
2. True sine wave UPS
The input and output waves (on battery mode) are the same (pure sinewave)... they will work with any equipment.. However they cost a fortune (300$+ for 650Va )
Is simulated Sine Wave UPS enough for kronos???
Love my kronos 88
Love my yamaha psr s910 as well
Korg Kronos 88, Yamaha PSR s910, Korg C720, Yamaha DTX 520, Focusrite Scarlett 18i6, a pair of Yamaha HS80 in (soon not to be) an unproperly treated room..
You'll only get a definitive answer from someone who's familiar enough with the Kronos's power supply to advise if it will be OK or not running on square wave power. Meanwhile, going for a pure sine wave unit is the safest bet. Price wise... I don't know about availability of refurbished units in Indonesia, but here's an example of a refurbished UPS from a US company (comes with a warranty and a very reasonable price tag):
no refurbishing here on indonesia... any junk will get scrapped and melted
Love my kronos 88
Love my yamaha psr s910 as well
Korg Kronos 88, Yamaha PSR s910, Korg C720, Yamaha DTX 520, Focusrite Scarlett 18i6, a pair of Yamaha HS80 in (soon not to be) an unproperly treated room..
You should be absolutely fine with a UPS that outputs an approximation of a sine wave. Switching mode power supplies are very resiliant.
Some types of equipment rely on tracking the frequency of the AC power source, or have very high current draw, and hence don't work well with these cheaper UPS devices. Becuase a switch-mode power supply naturally adapts to the incoming voltage and frequency by virtue of its design, they are prime candidates for simulated sine UPS devices.
Keep in mind that the UPS will only output a simulated sine wave in the vent of excessive voltage drop or complete blackout - the rest of the time it simply passes through the unmodified mains signal. Better UPS devices will also have a voltage regulator that kicks in before switching to battery.
Current Equipment:
Korg Kronos 2 88, Reface CS, Roland JV-1080, TE OP1, Moog Subsequent 37, Korg ARP Odyssey, Allen & Heath Zed 18, Adam F5, MOTU MIDI Express XT, Lexicon MX200 & MPX1, Yamaha QY700, Yamaha AW16G, Tascam DP008ex, Zoom H6, Organelle, Roland J6 & JU06A
Previous: Triton LE 61/Sampling/64MB/4GB SCSI, MS2000BR, Kronos 1 61, Monotribe, NanoKontrol, NanoKeys, Kaossilator II, Casio HT3000, Roland VP-03, Reface DX, Novation Mininova, MPC One
and this UPS is the kind that i'd like to buy= http://www.bhinneka.com/products/sku008 ... r_650.aspx
it's indonesian site but the product description is in english.. could anyone help me check it out?? could you gave me a good UPS recommendation (below 100$)??
thanks in advance!
Love my kronos 88
Love my yamaha psr s910 as well
Korg Kronos 88, Yamaha PSR s910, Korg C720, Yamaha DTX 520, Focusrite Scarlett 18i6, a pair of Yamaha HS80 in (soon not to be) an unproperly treated room..
1jordyzzz wrote:is kronos uses a switching power supply??
and this UPS is the kind that i'd like to buy= http://www.bhinneka.com/products/sku008 ... r_650.aspx
it's indonesian site but the product description is in english.. could anyone help me check it out?? could you gave me a good UPS recommendation (below 100$)??
thanks in advance!
Maybe an APC UPS is something for you. It is compact and has a fair price. I use the European version of this device. Here is a link to the version of Indonesia.
The Kronos uses a switching power supply. It's made by Enhance Electronics and the model number is ENO-1612. You can download a PDF from their website. I use an APC ES500 UPS on my computer. It was not expensive and is more than enough for a Kronos which only uses 60W. Don't know if they make that model any more though.
great value for money!! at 60 watt (kronos wattage), it claims to hold 30 minutes... not bad... also equipped with automatic voltage regulator.. it works great too.. tested it by unplugging it while kronos is running... smooth transition.
disadvantage = does not provide power conditioning
worth a try.. bought it for 58 bucks..
Love my kronos 88
Love my yamaha psr s910 as well
Korg Kronos 88, Yamaha PSR s910, Korg C720, Yamaha DTX 520, Focusrite Scarlett 18i6, a pair of Yamaha HS80 in (soon not to be) an unproperly treated room..
Keys+Sound Sources: Kronos 61, X2, X3, i3, i30, SG pro X, nanoPAD2, Yamaha MU100R, 2x CME UF70, Behringer FCB-1010, Yamaha FC-7
Sequencer: Steinberg Cubase Pro 8 & Nuendo 6.5
Outboard FX from Lexcion, Sony and Yamaha
Digital Mixers only from Yamaha
Sounds like some great options for a basic UPS. SeedyLee brought up a very relevant point "Keep in mind that the UPS will only output a simulated sine wave in the vent of excessive voltage drop or complete blackout - the rest of the time it simply passes through the unmodified mains signal. Better UPS devices will also have a voltage regulator that kicks in before switching to battery." I didn't look into that aspect when I bought mine, that was a very insightful observation. Fortunately, I had already thought of voltage regulation. Good luck.
Kronos 2 61, Wavestation A/D, Yamaha Genos and others.
DennyC wrote:Sounds like some great options for a basic UPS. SeedyLee brought up a very relevant point "Keep in mind that the UPS will only output a simulated sine wave in the vent of excessive voltage drop or complete blackout - the rest of the time it simply passes through the unmodified mains signal. Better UPS devices will also have a voltage regulator that kicks in before switching to battery." I didn't look into that aspect when I bought mine, that was a very insightful observation. Fortunately, I had already thought of voltage regulation. Good luck.
yes that APC has all that (auto voltage regulator thing).. besides, it's lightweight and small (good enough for a gig )
Love my kronos 88
Love my yamaha psr s910 as well
Korg Kronos 88, Yamaha PSR s910, Korg C720, Yamaha DTX 520, Focusrite Scarlett 18i6, a pair of Yamaha HS80 in (soon not to be) an unproperly treated room..
Cpilot wrote:The Kronos uses a switching power supply. It's made by Enhance Electronics and the model number is ENO-1612. You can download a PDF from their website. I use an APC ES500 UPS on my computer. It was not expensive and is more than enough for a Kronos which only uses 60W. Don't know if they make that model any more though.
Bryan
Him, I found this interesting. According to this thread, active PFC power supplies (which the Kronos is using) and stepped sine wave UPS's dont play well together. The PDF of the ENO-1612 states that the output is 120W Active PFC.
I had some issues with sounds hanging and fixed it by turning on and off the prelude stuff. What I determined is it was brown outs form the power company. I installed an APC backups ups 850va several years old now and have never had another issue. i think everyone should pay up for a good solid ups mine was only 79$ at the time and I don't think you need 850va if you are just running your Kronos. i also have y QSC K10 on it and have lost power and still ran for 20 minutes before I shut off all the gear. I was having fun and curious how long it would last but at 20 minutes I was thinking maybe I shouldn't let it die so i shut it all down.
Cpilot wrote:The Kronos uses a switching power supply. It's made by Enhance Electronics and the model number is ENO-1612. You can download a PDF from their website. I use an APC ES500 UPS on my computer. It was not expensive and is more than enough for a Kronos which only uses 60W. Don't know if they make that model any more though.
Bryan
Him, I found this interesting. According to this thread, active PFC power supplies (which the Kronos is using) and stepped sine wave UPS's dont play well together. The PDF of the ENO-1612 states that the output is 120W Active PFC.
I personally do not worry the slightest bit about using a stepped approximation UPS with the Kronos (or with any PFC power supply appliance). The "test" the guy says he did in your link is not relevant to an application in which you use a small UPS for your Kronos only. Not to mention the way the guy seems to have done it - unless he expressed himself incorrectly. One should never unplug an UPS from the AC outlet to do a test, unless you don't mind damaging what is connected to it (because of the randomly happening loss of ground level).
A good rule of thumb for active PFC is to multiply your load by at least 1,25 (or more to stay on the safe side) and choose the UPS wattage accordingly. It is never a good idea to load an UPS to the limit anyway, as it will then give only a very short autonomy. With its low consumption (only 60 W), it is easy to find a decent UPS to protect your Kronos.
Finally, it happened a couple of times when we had power outages here while my computer, its 22" screen and the Kronos were on. Everything went smoothly and stayed on, with the Kronos still playing just fine. Once again, it is a matter of keeping a good safe margin between the actual load and the UPS capacity.
Bertotti wrote:I had some issues with sounds hanging and fixed it by turning on and off the prelude stuff. What I determined is it was brown outs form the power company. I installed an APC backups ups 850va several years old now and have never had another issue. i think everyone should pay up for a good solid ups mine was only 79$ at the time and I don't think you need 850va if you are just running your Kronos. i also have y QSC K10 on it and have lost power and still ran for 20 minutes before I shut off all the gear. I was having fun and curious how long it would last but at 20 minutes I was thinking maybe I shouldn't let it die so i shut it all down.
I have APC's ( the large ones) for my tv and satellite box and also my wife's computer station and phone system. For myself, I went to Best Buy and bought a Cyberpower...a smaller one and they have all worked great for several years. I might need a new batter for the Cyberpower. I highly recommend using a UPS with the Kronos, just a smart move.
Kronos 2 61, Wavestation A/D, Yamaha Genos and others.
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