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#3088757 03/03/21 06:25 AM
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Dear all,

I have a question to you: has any other owner of Kawai GL-10 (ATX2) noticed an asymmetric keybed whole/opening in their piano? (please forgive me my nomenclature here). What I meant is the fact that there is at least 1cm difference in the hight of the keybed opening that hosts the action on the left-hand side of the piano with respect to the right-hand part. The action elements are literally squeezed in on the right hand side, whereas the left parts can move freely?

Has anybody else seen this? I have a feeling this is a design / manufacturing flaw.

The left-hand part with ample (1cm+) room above the action.
[img]https://drive.google.com/file/d/1XkAG9WdPNiQDCN0Q7t8JP4w7cZeGL3S7/view[/img]

The right-hand part that is literally squeezed in and scratches the top of the keybed 'drawer'.
[img]https://drive.google.com/file/d/1nT6qu_OIhxxa6BcpGuIit0kgkvhUVH_G/view[/img]


Kawai GL-10 with ATX2
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I don't understand what those pictures are showing, but keep in mind that the action needs to move when you press the una corda pedal, so they won't be installed with the same space on both sides (although that would make your left- and right- opposite). Is that what you are talking about?


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I don't think there's a design flaw there. It's simply the shape of the wrest plank, which is narrower (front to back) in the bass than in the treble. Have a look at where the tuning pins are, and you'll see the shape of the front of the plank. If you look at the action, level with the underside of the plank, I think you'll find the action cavity is about the same at both ends smile


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Originally Posted by Adypiano
I don't think there's a design flaw there. It's simply the shape of the wrest plank, which is narrower (front to back) in the bass than in the treble. Have a look at where the tuning pins are, and you'll see the shape of the front of the plank. If you look at the action, level with the underside of the plank, I think you'll find the action cavity is about the same at both ends smile

Thank you so much. I did look on the tuning pins from the top, indeed. There are far less tuning pins in the bass section of the piano and I can see that this would effectively yield far broader 'drawer' than on the right hand side of the piano.


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If you were to remove the action and made a measurement, the distance between the keybed and the underside of the pinblock is exactly the same in the bass as in the treble.

So, now there is a thread on PianoWorld saying that there is a "design flaw" in the GL-10 because you didn't understand how pianos are designed.

Unfortunately it seems that is not possible to change the title of a thread once there have been responses. So this thread will live forever on the forum. <sigh>


Don Mannino, MPA
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Originally Posted by KawaiDon
If you were to remove the action and made a measurement, the distance between the keybed and the underside of the pinblock is exactly the same in the bass as in the treble.

So, now there is a thread on PianoWorld saying that there is a "design flaw" in the GL-10 because you didn't understand how pianos are designed.

Unfortunately it seems that is not possible to change the title of a thread once there have been responses. So this thread will live forever on the forum. <sigh>

Indeed, the title I have given to the post is misleading and misrepresenting the issue I had. I will ask the admin to take the post down. I do like my Kawai GL-10. I do think it is a very decent instrument.


Kawai GL-10 with ATX2

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