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#682880 - 12/04/06 05:01 PM How authentic is GH action, really?
jrcooper Offline
Junior Member

Registered: 12/01/06
Posts: 4
Loc: Los Angeles
I'd like to know what acoustic piano players really think of today's Graded Hammer digital piano keyboards. How much do they really feel like an acoustic action-wise?

I ask because I do not have enough experience behind either to make an authoritative judgement. I was getting the feel of the Yamaha P-140 and CP-33 keyboards over the weekend in a local Guitar Center and thought, gee this doesn't really feel like what I remember an acoustic piano keyboard feeling like (from years of compulsively plinking on one anytime one was within reach).

Given the significant differences in construction between them, I really have to wonder how close GH digital keyboards are to feeling like "the real thing".

On a scale of 1-10 (1 means no resemblence at all, and 10 means so identical you'd swear it was acoustic construction), how close do these keyboards feel? And how much closer do they get if we go from $1000-1500 keyboards to the $2000-3000 keyboards?

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#682881 - 12/04/06 05:13 PM Re: How authentic is GH action, really?
signa Offline
8000 Post Club Member

Registered: 06/06/04
Posts: 8483
Loc: Ohio, USA
the key difference between a GH and an acoustic grand besides weight is the string vibration of acoustic keys which is not simulated on a digital key action. other than that, the feel is about 80% authentic. but for a GH3 or a wood action (as on a CLP280), it would be 85-90% authentic, i guess.

my teacher has a P90 and he plays on acoustic grand regularly as well, and he said that P90's action, i.e. GH, is pretty much like the action on a grand. but i don't know what scale likehood he'd give on that.

at $2500-3000 range, considering CLP230 GH3 and above models, it would get additional 10-15% closer to acoustic action than a GH action, i would guess.

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#682882 - 12/04/06 05:52 PM Re: How authentic is GH action, really?
Mike A Offline
500 Post Club Member

Registered: 11/08/06
Posts: 520
Loc: So.Cal.USA
One important difference is that on an acoustic grand piano, you can feel the escapement -- i.e., the little "catch" feel when the hammer releases to hit the string. On most digital pianos, there's no equivalent feel.

There are some Roland model digital keyboards that apparently do simulate the feel of the escapement. See:
http://www.roland.com/products/en/_support/faq.cfm?iCncd=1083&FAQ=EN31-07708&dsp=1&ln=en&prd=HP109

I don't know about other manufacturers.

This difference is very noticeable when you go from a digital keyboard to an acoustic grand. Otherwise I'd say GH3 action is pretty similar.

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#682883 - 12/10/06 11:23 AM Re: How authentic is GH action, really?
bachmaniac Offline
Full Member

Registered: 12/01/06
Posts: 410
Loc: Montreal, CAN
Mike is absolutely right, here. Escapement makes a difference, not the keyboard being wood or not, though I confess that Kawai's beautiful AWA Pro action challenges that. I recently tried a Roland that had escapement (the 107, I believe) and I must say Much Ado About Nothing, though. They haven't really been successful in aping genuine escapement. Not worth it. But watch for Kawai's new offerings, beginning of 2007: the CA91 and the CA71 will be offering escapement. The 91 will offer a "sounding board" wooden back panel as well...
Claude (bachmaniac)
_________________________
K. Kawai KG-2D grand, Kawai MP8 digital, Kawai CA7

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#682884 - 12/10/06 12:32 PM Re: How authentic is GH action, really?
fogwall Offline
Full Member

Registered: 08/01/04
Posts: 160
Loc: Sweden
 Quote:
Originally posted by bachmaniac:
Mike is absolutely right, here. Escapement makes a difference, not the keyboard being wood or not (...)[/b]
In my opinion, the only digital pianos that can supply a realistic (double) escapement are the Yamaha's GranTouch models (I'm a GT2 user myself).

Of course, it would be interesting to try out the new Kawais when they appear. The only Kawai I have tried is the MP9000. Although a nice hammer response, the action is way too light. Does anyone know if this has changed in the AWA Grand Pro (or Pro II)?
_________________________
www.fogwall.com

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#682885 - 12/10/06 12:33 PM Re: How authentic is GH action, really?
fogwall Offline
Full Member

Registered: 08/01/04
Posts: 160
Loc: Sweden
--- (double post) ---
_________________________
www.fogwall.com

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#682886 - 12/10/06 01:18 PM Re: How authentic is GH action, really?
terminaldegree Online   content
2000 Post Club Member

Registered: 05/03/06
Posts: 2678
Loc: western Wisconsin
One way you can come to your own conclusion is to drop by a Yamaha dealer sometime; they ususally stock the whole range from the cheapest digitals to the larger grands. You can literally just play one after another, back to back, and come to your own conclusion with some impartiality [assuming the salespeople leave you alone].

Now I'm one of those biased acoustic-piano guys, but the thing I noticed is once you got to a digital with a really great action and sound, the price was similar to an acoustic piano that sounded and felt as good or better than it. I would concede that, in the sub-$2000 price range, a digital may be a better overall choice for most people than what they could get for a new or used acoustic piano.
_________________________
Pianist, teacher, internet addict.
Piano Review Editor - Acoustic and Digital Piano Buyer
Casio px-200, Bechstein A190 #192939 @ home
Steinway A #585209, B #416809 @ work
Schimmel 130T #339100, on loan

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#682887 - 12/11/06 04:24 PM Re: How authentic is GH action, really?
Wandering Weezard Offline
Full Member

Registered: 03/14/06
Posts: 369
Loc: Indiana
 Quote:
Originally posted by bachmaniac:
Mike is absolutely right, here. Escapement makes a difference, not the keyboard being wood or not, though I confess that Kawai's beautiful AWA Pro action challenges that. I recently tried a Roland that had escapement (the 107, I believe) and I must say Much Ado About Nothing, though. They haven't really been successful in aping genuine escapement. Not worth it. But watch for Kawai's new offerings, beginning of 2007: the CA91 and the CA71 will be offering escapement. The 91 will offer a "sounding board" wooden back panel as well...
Claude (bachmaniac) [/b]
Are the CA91/71 Kawai's "upright" digital's? How did you find out about these new offerings?
_________________________
Dreaming of a grand...

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#682888 - 12/11/06 05:39 PM Re: How authentic is GH action, really?
bachmaniac Offline
Full Member

Registered: 12/01/06
Posts: 410
Loc: Montreal, CAN
Yes, Weez, they replace the CA9 and CA7, respectively. You can already google them out but the only info you'll find about them for now is in Japanese. They're scheduled for the beginning of 2007. I read about it all right here in this forum...
Claude (bachmaniac)
_________________________
K. Kawai KG-2D grand, Kawai MP8 digital, Kawai CA7

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