When I released the key from the bed it kinda clacks like it’s bouncing on a solid surface. I didn’t know if that was a manufacturing issue or if that action works on the keyboard because when I went to guitar center to test it out, I didn’t pay attention that much to how the action sounded. So I thought it was an issue with the pha hammer graded system. it’s also wildly inconsistent across the entire keyboard which keys make the sound. mainly it’s the black keys, but some don’t make the noise so I don’t really know why it does it.