A.No, it is different.
The RG-7 uses Roland's progressive hammer action keyboard with escapement. This keyboard was developed specifically for digital pianos, and was designed to provide the same expressive response and touch as the keyboard of an acoustic concert grand piano.
For details on the progressive hammer action keyboard with escapement, refer to the following related FAQ.
What are the main features of the progressive hammer action keyboard used in Roland pianos?
I understand that the keyboards on Roland's high-end digital piano models are equipped with an "escapement mechanism." What is this?
(2006/03/17)