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 Would a difference in ~10g between adjacent key be ok?
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Joined: Apr 2018
Posts: 9,824
9000 Post Club Member
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OP
9000 Post Club Member
Joined: Apr 2018
Posts: 9,824 |
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.
![[Linked Image]](http://forum.pianoworld.com//gallery/42/medium/12282.png) across the stone, deathless piano performances "Discipline is more reliable than motivation." -by a contributor on Reddit r/piano "Success is 10% inspiration, and 90% perspiration." -by some other wise person "Pianoteq manages to keep it all together yet simultaneously also go in all directions; like a quantum particle entangled with an unknown and spooky parallel universe simply waiting to be discovered." -by Pete14
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Re: Would a difference in ~10g between adjacent key be ok?
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Joined: Apr 2010
Posts: 2,275
2000 Post Club Member
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2000 Post Club Member
Joined: Apr 2010
Posts: 2,275 |
Not at all within the range of acceptability.
Keith Akins, RPT
Piano Technologist
USA Distributor for Isaac Cadenza hammers and Profundo Bass Strings
Supporting Piano Owners D-I-Y piano tuning and repair
editor emeritus of Piano Technicians Journal
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Re: Would a difference in ~10g between adjacent key be ok?
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Joined: Feb 2017
Posts: 3,710
3000 Post Club Member
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3000 Post Club Member
Joined: Feb 2017
Posts: 3,710 |
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?
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Joined: Feb 2011
Posts: 506
500 Post Club Member
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500 Post Club Member
Joined: Feb 2011
Posts: 506 |
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. N1X DP forum
Nord Grand, Kawai MP11 (v1), iMac 2017, Yamaha HS8's, Sennheiser 650, Focusrite 2i4, Pianoteq 6.4.0, Steinway Model A, Mason and Hamlin Model AA, Piano Marvel: 3C
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Re: Would a difference in ~10g between adjacent key be ok?
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Joined: Feb 2017
Posts: 3,710
3000 Post Club Member
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3000 Post Club Member
Joined: Feb 2017
Posts: 3,710 |
I freely admit that I know nothing about the unit so I'm useless.
Pwg
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