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Does Kronos use Active or Passive PFC in its power supply?
Posted: Fri Mar 20, 2015 5:56 pm
by evimidiman
Hi,
Since the Kronos streams from the SSD whenever you play its pianos, I would think buying an Uninterruptible Power Supply (UPS) would be crucial to the stability of using this instrument long-term to avoid brownouts, sags, etc.
Does anybody know if the Kronos uses Active or Passive PFC in its power supply?
That makes a difference on what type of UPS to use.
Thanks in advance,
Steve Cooper
Posted: Fri Mar 20, 2015 7:43 pm
by McHale
I don't know the answer to your question but would you be able to figure it out with a detailed picture of the inside of the power supply?
-Mc
Posted: Fri Mar 20, 2015 8:02 pm
by Synthee
McHale wrote:I don't know the answer to your question but would you be able to figure it out with a detailed picture of the inside of the power supply?
-Mc
Here you can see an picture of the power supply:
http://www.korgforums.com/forum/phpBB2/ ... &start=300
Re: Does Kronos use Active or Passive PFC in its power suppl
Posted: Sat Mar 21, 2015 8:32 am
by Derek Cook
evimidiman wrote:Hi,
Since the Kronos streams from the SSD whenever you play its pianos, I would think buying an Uninterruptible Power Supply (UPS) would be crucial to the stability of using this instrument long-term to avoid brownouts, sags, etc.
It's also crucial to avoid the 2 minute boot time on stage if the power glithed such that it crashes the Kronos, your band mates are carrying on and you look like a lemon!
Posted: Sat Mar 21, 2015 9:06 pm
by evimidiman
Synthee wrote:McHale wrote:I don't know the answer to your question but would you be able to figure it out with a detailed picture of the inside of the power supply?
-Mc
Here you can see an picture of the power supply:
http://www.korgforums.com/forum/phpBB2/ ... &start=300
I wish I was smart enough to be able to look at and know what type of circuit it is, but I'm not
Perhaps somebody at Korg can tell us, because Active or Passive PFC (Power Factor Conversion) is important since Active REQUIRES an UPS that can deliver a pure sine wave. Older and cheaper UPS's cannot do that and they can also damage any unit that is plugged into it when it delivers backup power.
Re: Does Kronos use Active or Passive PFC in its power suppl
Posted: Sat Mar 21, 2015 9:19 pm
by evimidiman
Derek Cook wrote:evimidiman wrote:Hi,
Since the Kronos streams from the SSD whenever you play its pianos, I would think buying an Uninterruptible Power Supply (UPS) would be crucial to the stability of using this instrument long-term to avoid brownouts, sags, etc.
It's also crucial to avoid the 2 minute boot time on stage if the power glithed such that it crashes the Kronos, your band mates are carrying on and you look like a lemon!
So true!!! I should have mentioned that I have the newest Kronos 2, 61 key, so I don't know if they have had different power supplies in the 3 versions of Kronos hardware...