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#694044 - 09/15/07 05:02 PM Yamaha digital piano terminology
haydin Offline
Junior Member

Registered: 09/09/07
Posts: 3
Hello,

I want to purchase a Yamaha digital piano. While researching, came across several different terminologies for the key action, but I could not find what the difference is between them. My question is what is the difference between:

- Graded hammer standard
- Graded hammer action
- Graded hammer effect
- Graded hammer system
- Soft touch action
- Graded soft touch action

I suspect some of them are the same, but I really don't know

Thanks

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#694045 - 09/15/07 07:42 PM Re: Yamaha digital piano terminology
Craigen Offline
1000 Post Club Member

Registered: 08/01/05
Posts: 1815
Loc: West Coast
A few years back the issue of weighting digital actions differently in zones to more accurately approximate the keyresponse to an acoustic grand. Acoustic piano hammers are large in the bass and narrow to very small in the trebble. The use of the term "graded" in any phrase referring to the action of the digital refers to this.
As a piano technician I could care less what that call it or what materials they use, or what designs they use to accomplish it. All I care about is how it feels related to a quality acoustic grand.
_________________________
Piano Technician, member Piano Technicians Guild.

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#694046 - 09/16/07 01:20 AM Re: Yamaha digital piano terminology
signa Offline
8000 Post Club Member

Registered: 06/06/04
Posts: 8483
Loc: Ohio, USA
actually, there're only 4 types (excluding no-weight/semi-weight keyboards):

GHS = graded hammer standard
GH = graded hammer/graded hammer effect/graded hammer system
GH3 = graded hammer generation 3
NW = natural wood action

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#694047 - 09/16/07 01:44 AM Re: Yamaha digital piano terminology
skyy38 Offline
Junior Member

Registered: 09/16/07
Posts: 6
Loc: Alaska
Don't pay attention to the terminology.
Play as many different models as you can and when you come across one that feels and sounds good,get it.

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#694048 - 09/16/07 06:37 PM Re: Yamaha digital piano terminology
Mechanical Doll Offline
Full Member

Registered: 06/10/07
Posts: 199
Loc: Garden State, USA
The differences in the keyboards on the Yamahas are discussed here:

http://music.yamaha.com/products/highlights/keyboardsAST/8.html
_________________________
Music produces a kind of pleasure which human nature cannot do without. ~Confucius

Music is moonlight in the gloomy night of life. ~Jean Paul Richter

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