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Discussion about the Korg PolySix synthesizer

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Noob question: background noise

Noob question: background noise

2014-01-21 by Fredrik Stolpe

Hi group

I purchased a polysix recently. It's awesome, I love it, there's only one problem: There's a lof ot background white nosie.

Not "a lot" like in "totally unusable", just more than other gear and synths I have/had (Kawai SX-240, Roland SH-09, JX8P, Roland MC-202).

When playing it doesn't bother me, but when recording, especially when recording multiple tracks and the noise is multiplied.

The nosie is not constant on the output, if I for example modulate the vca it goes away when the vca is pulled low.

Does this sound like common behaviour for a polysix? Or is mine expecially noisy?

Anyone had success reducing the noise? Common ground for all boards is one tip I have read about.

Anyway, now I've been testing noise eliminiation in my DAW with izotope rx3 demo, works like a charm, but it's a bit expensive...

Regards
/Fredrik

Re: [PolySix] Noob question: background noise

2014-01-21 by Patrick Belcher

Yeah, that's pretty normal. There's about a million topics on here regarding noise reduction. Some members have done mods bypassing the effects section which seemingly improves the SNR drastically as I understand it (though haven't looked into it in detail), and have been generous enough to share their findings and give details on how to. Relatively straightforward to implement. There's other stuff you can try as well, have a read!


On Tue, Jan 21, 2014 at 8:32 AM, Fredrik Stolpe <fredrik.stolpe@gmail.com> wrote:

Hi group

I purchased a polysix recently. It's awesome, I love it, there's only one problem: There's a lof ot background white nosie.

Not "a lot" like in "totally unusable", just more than other gear and synths I have/had (Kawai SX-240, Roland SH-09, JX8P, Roland MC-202).

When playing it doesn't bother me, but when recording, especially when recording multiple tracks and the noise is multiplied.

The nosie is not constant on the output, if I for example modulate the vca it goes away when the vca is pulled low.

Does this sound like common behaviour for a polysix? Or is mine expecially noisy?

Anyone had success reducing the noise? Common ground for all boards is one tip I have read about.

Anyway, now I've been testing noise eliminiation in my DAW with izotope rx3 demo, works like a charm, but it's a bit expensive...

Regards
/Fredrik


Re: Noob question: background noise

2014-01-21 by David Davis


Subject: Re: Noob question: background noise
Yep, Polysixes are noisy, no question.
The Kiwisix PSU Upgrade includes additional earthing which improves this noise considerably (I didn't do before and after measurements but I'd say it was something like a 6dB improvement)


Re: [PolySix] Re: Noob question: background noise

2014-01-21 by Fredrik Stolpe

Yo

Yeah, I heard you can do i similar mod with the original PSU, without the Kiwisix PSU upgrade. Maybe I will give this a shot. Now I'm happy using noise reduction.

/Fredrik


On Tue, Jan 21, 2014 at 12:26 PM, David Davis <feline1@feline1.co.uk> wrote:


Subject: Re: Noob question: background noise
Yep, Polysixes are noisy, no question.
The Kiwisix PSU Upgrade includes additional earthing which improves this noise considerably (I didn't do before and after measurements but I'd say it was something like a 6dB improvement)