The Kawai CA701 and CA901 are both built around Kawai’s highly acclaimed ‘Grand Feel III’ keyboard action, with all 88 keys of the keyboard crafted from long pieces of wood. What makes the Grand Feel III keyboard unique from most other digital pianos in this price range is the fact that every key has a balance pin. Each key sits on the balance pin, and it results in a see-saw type movement - which is mechanically similar to that of an acoustic grand piano. This results in an amazingly natural acoustic piano-like touch, which is one of the most important considerations when choosing a digital piano.
The key weighting on the CA701 and CA901 is also graded, which means it is slightly heavier in the bottom register compared with the top. The graded counterweights balance the weight of the hammers, improving the touch consistency and giving you more control when playing pianissimo or very delicate pieces.