[jaromir]

Does anybody know, what differecne is between Roland "hammer action mechanism" and "weighted hammer action" ? I can test only the first one, pianos with second one are not in store I'm visiting (I'm from Czech Republic, if you'd like to ask for this ,

Jaromir

[Melodytune]

TBH Not sure of the answer directly to your question but different keyboard manufacturers use slightly different mechanisms to simulate the keyboard on a real piano. This is usually achieved by weighted keys, they have lead weights to create some resistance to the key being pressed down while trying to simulate the action of a real piano by means of a mechanism at the back of the keys. I know its a bit vague but you're best to ask as many people as possible.

If you have access to a local school which may have some, try and approach them.
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Chris Melloy
Piano Tuner

[jaromir]

Yes, but those two names of mechanics which I wrote above are both by Roland, so I thought that someone could know...

[cwilson]

Weighted hammer action means that the keys are very heavy at the bottom and are lighter as you go down, or the other way around. Normal hammer action doesn't do that. I think that's what it means anyway. So, if you want something similar to the feel of an acoustic piano, I think the best option would be the weighted.

[Melodytune]

Have you tried www.rolandus.com ?
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Chris Melloy
Piano Tuner

[Melodytune]

[jaromir]

Thank you very much, after much of testing, I'm going to Yamaha CLP-115 probably. I haven't tested Kurweil Mark 1 or 3, which may have excellent keys, but anyway, they are too expensive for me.

[Barrie Heaton]