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Would a difference in ~10g between adjacent key be ok?
#2856888 06/09/19 08:06 AM
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On the digital forum, we are discussing the touch weight of keys on a Yamaha Avantgrand N1X, which has an Yamaha acoustical grand action. One of our members, an owner of a nearly new N1X, did a simple test and made a video at the link above which shows the a white key with a touch weight of under 50g, when the a two adjacent white keys are more like 60g each (see video). Does this suggest an acoustical action that needs regulation? Or would this be considered normal for an acoustical grand piano?

Thanks for any insight since I have a new N1X too and if this is not considered normal, I'm going to be getting out my pennies and try measuring mine too.


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Re: Would a difference in ~10g between adjacent key be ok?
Tyrone Slothrop #2856902 06/09/19 08:54 AM
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Not at all within the range of acceptability.


Keith Akins, RPT
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Re: Would a difference in ~10g between adjacent key be ok?
Tyrone Slothrop #2856968 06/09/19 11:52 AM
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Certainly not ideal, however, how is this "action" set up? I don't know what it looks like. Then again, are there any published specs Y on the matter? What do they claim (if anything)? If they claim 50-60g resistance they're good. If they claim 50g they're not.

Pwg


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Re: Would a difference in ~10g between adjacent key be ok?
Tyrone Slothrop #2857041 06/09/19 04:16 PM
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That’s kind of the issue PWG. They are not advertising anything. Some of the DP owners/prospects are complaining of an exaggerated or heavy weighted key action. The Avant Grand actions I think are from the smaller Yamaha Grand so that could be part of the issue (shorter keys). The other issue could be that these actions are not getting regulated by the dealers so they come from the factory with an AP action that has not been touched.

The DP owners in the DP forum could really use your help understanding what they should or should not expect. It is all over the place in there at this point.

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Re: Would a difference in ~10g between adjacent key be ok?
Tyrone Slothrop #2857047 06/09/19 04:42 PM
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I freely admit that I know nothing about the unit so I'm useless.

Pwg


Peter W. Grey, RPT
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