georgmierau Posted February 8, 2022 Share Posted February 8, 2022 I've got a problem with a Privia PX-770 purchased a year ago. The C4 and C5 keys (and only these two) produce a "weird" very unpleasant sound. Compared to other keys they sound resounding and droning. Here is a short demonstration video: https://youtu.be/Ds6j6uMKbQU Is there any way to fix that? There is no issue while playing using headphones. Quote Link to comment Share on other sites More sharing options...
Joe Muscara Posted February 9, 2022 Share Posted February 9, 2022 That seems like a physical resonance. It may seem silly, but check if the instrument is up against something that it is causing to vibrate, including the wall, or if something nearby is vibrating. Then see if there is something in the instrument itself that seems to be vibrating/resonating excessively when you play those notes. It's possible something is loose. If that's the case hopefully you're still under warranty coverage. Quote Link to comment Share on other sites More sharing options...
georgmierau Posted February 9, 2022 Author Share Posted February 9, 2022 I also think that it's probably something like the wall or our laminate floor resonating, we'll try to fix it with a carpet. Quote Link to comment Share on other sites More sharing options...
Joe Muscara Posted February 10, 2022 Share Posted February 10, 2022 Let us know what you find. Quote Link to comment Share on other sites More sharing options...
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