Band: opinion spread · Dot: weighted average
Sources split, and this is the aspect the product exists for. One camp calls the RM3 Grand II the most convincing piano action available on any controller; the other says it is a 2013 design with a real ceiling — fast repeated notes and even response toward the back of the key. Kawai's own answer explains why: the flagship action would not fit, so the VPC1 uses a shorter keystick.
Measured
Kawai's spec sheet: 88 wooden keys, grade-weighted hammers, let-off simulation, triple-sensor key detection and bass counterweights. Kawai's own Q&A says "it would not be possible to include the 'Grand Feel' action in the VPC1 without a considerable increase to the chassis size", so the board runs a shorter keystick than the MP11 and Concert Artist pianos.
vs. listeners — The spec supports both camps rather than settling them. Triple sensors genuinely improve same-note repetition against the two-sensor beds most controllers use, which is what the enthusiasts feel; the shorter keystick genuinely reduces leverage further up the key, which is what the critics run into at speed. Kawai's own staff have twice said in public that this is not the company's best action.
“a first-rate physical piano feel which, when married to one of today’s superb software pianos, gets better and better as you play it”
Keyboard Magazine, via MusicRadar
“The VPC1, as great as a piano controller is, is not good at playing repeated notes. It lags in the articulation of short note repetitions.”
David Lai, PianoClack
