Modellingoptimist wrote:For me most digital piano hammer actions are too heavy. The CDP-130's is lighter but still heavier than the grand piano's I have access to. It also features lighter touch in piano than in forte as you described. Seems as if it's rather an individual thing.
It's also strongly dependent on the regulation of the individual (grand) piano, and there are noticeable differences between grands and uprights as well. I exercise routinely on some Steinway uprights and let's just say they provide real training for my tactile strength.
In general however, you are missing the point about the 'heaviness' of the touch being quite different between the piano-pianissimo and forte-fortissimo ranges. The forte range usually is much heavier on a 'real' instrument and this cannot be reduced by regulation, since it is purely a function of mass: there are a lot of parts involved in a piano action, and they all have to move quickly.
My main beef with the Casio actions and many, many other digital actions is that they are too light in forte and at the same time too heavy in piano, which is purely due to the fact that they lack the necessary mass. Manufacturers try to find a compromise, but this problem cannot be fixed without making the keys (and the action) considerably more 'massive'.
Because of this, the newest digital actions by Kawai even include counter-weights to increase the keys' mass: this actually makes the touch lighter in the piano range, leaves it more or less the same in the middle range and makes it heavier in the forte range. The RH and RM3 and GF actions by Kawai have always been a lot more massive than the Casio actions anyway, and this is the reason why I switched to a VPC-1 for my daily practice. The price (apart from the monetary aspect) is of course that a VPC-1 or a MP-11 weigh almost three times as much as a Casio digital piano.
Last edited by kalessin (20-11-2014 17:00)
Pianoteq 6 Standard (Steinway D&B, Grotrian, Petrof, Steingraeber, Bechstein, Blüthner, K2, YC5, U4, Kremsegg 1&2, Karsten, Electric, Hohner)