Weird hiss on German and Japanese pianos

[danatkorg]

Thank you for your kind answers.

I will see what will be after full system restore.

I cannot stress this too firmly:

DO NOT DO A FULL SYSTEM REINSTALLATION.

This is not Windows. As noted in the manual, reinstalling the system should only be done in extreme circumstances - for instance, if the system will not boot at all.

Reinstalling may also clear your system calibration data, which means that some controllers might not work properly until you take it into a shop for recalibration.

My opinion, from listening to your example files, is that your system is working normally. I believe that if you listen to a real acoustic piano, you will hear the strings resonate in a similar way. However, tastes may differ. If you wish, it is simple to reduce the volume of the damper resonance; see the Parameter Guide for details (the section on the SGX-1 is very short). If you continue to have concerns, please contact the support department of your national Korg distributor, using the link in my signature.

- Dan

[Nightale]

Sounds perfectly good. Nice playing

Have you tried changing headphones to see if it's not their chassis entering a resonance state when you play a certain frequency? (no one talked about that and it could be good to verify it).

[ronnfigg]

I didn't hear any hiss either. I did hear the damper resonance. Maybe you speakers are turned up too high and you are hearing hiss from the system. Do you hear the hiss in headphones connected directly to the Kronos headphone output?

[mkrznar]

It looks that damper resonance sounds kinda strange on my sound system.

When I turn of damper resonance, hiss is 99.9% gone.

Maybe its just matter of speakers response characteristic.

Kronos is ok, i re-installed everything to factory and it works normally.

Mystery solved.

Again, thank you all for fast support!

[ed_f]

Glad to hear the "working normally" comments. I thought the same but wondered if I was just missing something.

I would imagine Dan's advice will do what is needed here.

[jeebustrain]

It looks that damper resonance sounds kinda strange on my sound system.

When I turn of damper resonance, hiss is 99.9% gone.

Maybe its just matter of speakers response characteristic.

Kronos is ok, i re-installed everything to factory and it works normally.

Mystery solved.

Again, thank you all for fast support!

I hear the same sound when I am using headphones, but don't hear it when I play through speakers. Yea, it's the damper resonance. Kinda freaked me out at first, but I got used to it. I actually find myself playing the pedal sometimes to get a little rhythmic accompaniment for my piano playing.