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Regarding temperature of your Polysix, if you have the capability to measure temperature, you can compare the measured temperature of your Polysix to mine.
To see where I measured and how hot it got, you can look at this post:
http://synthhacker.blogspot.com/2013/07/polysix-temperature-without-mods.html
The bottom line is that, on the power supply PCB inside the synth, along the metal bar at the top (ie, what should be the hottest part of the whole synth), my Polysix eventually reached between 58-63C. It took about 30 minutes to finally reach that temperature before stabilizing.
Good luck!
Chip
--- In polysix@yahoogroups.com, <johau@...> wrote:It is hard to tell if the noise you experience is average for a Polysix.
There is quite some audible noise. And it is natural that when the MG
is set to VCA the noise pulsates with the MG.
The MG frequency can be max. about 50Hz, which is already an audible
frequency; this may lead to some strange (sound) effects. I assume that
when the mixer "goes red" that it is still at normal level? If you crank
up the Gain on the mixer without playing any note it should be no
problem to bring up some of the level LEDs. But you could not bear the
high volume when playing the keyboard then.
For the heat issue: again it is difficult to tell whether this is a
malfunction. The back of the Polysix, at the Korg logo, becomes quite
warm. Certainly not so hot that you cannot touch. Since you did not tell
us about burnt fingers or the like I'd assume that it is in the normal
range.
I hope this helps!
JohannesOn 19.09.13 17:54, agk_achilles2004@... wrote:
>
>
> OK, so now i notice that the LFO problem occurs when i route the LFO to
> the VCA.
>
> It seems like the LFO freq is the one that passes as audio. My mixer
> goes all the way to red if i increase the LFO level and you can hear a
> big hissing sound that comes and goes. Is that normal? One of the
> patches that came with the unit produces that as it is... patch B5.
>
> Any help would be appreciated.
>
>
>
> --- In PolySix@yahoogroups.com, <polysix@yahoogroups.com> wrote:
>
> Hi guys
> I just got on my hands a Polysix but it seems to produce a lot of heat
> on the back side where the KORG logo is located.
> Also the LFO (MG) seems to produce a low level noise that shows on my
> Mixer.
> If i turn the MG level up my mixer goes all the way to red and i hear a
> low hum. i can change the hum speed using MG frequency.
> Any ideas? is that normal on a Polysix? Easily fixable? I really like
> the synth and would like to buy it.
> Greetings!
>
> p.s. sorry about my English
>
>
>