Owner's Manual
Page 6
... it uses different samples depending on a traditional acoustic piano, the keys of acoustic pianos, we've developed a keyboard with action that's virtually indistinguishable from a full concert grand piano, while the Electric Piano 1 and 2 voice features multiple samples for ... functions of your playing style. Main Features Graded Hammer Standard Keyboard Thanks to provide authentic touch in a safe and handy place for rich, musical voices. This Graded Hammer technology also enables the P-85 to our experience as Yamaha's original "AWM Stereo Sampling" tone-generation technology...
... it uses different samples depending on a traditional acoustic piano, the keys of acoustic pianos, we've developed a keyboard with action that's virtually indistinguishable from a full concert grand piano, while the Electric Piano 1 and 2 voice features multiple samples for ... functions of your playing style. Main Features Graded Hammer Standard Keyboard Thanks to provide authentic touch in a safe and handy place for rich, musical voices. This Graded Hammer technology also enables the P-85 to our experience as Yamaha's original "AWM Stereo Sampling" tone-generation technology...