With the introduction of the AvantGrand, Yamaha ignited a revolution in the approach to sampling recording and playback of the notes of the actual acoustic piano. Treating the sound-board not simply as a point source of sound but as a plane, we took samples at four positions, adding optimum center and rear locations to the traditional left and right. Meanwhile, the AvantGrand’s speaker system has been designed to ensure that this sound is heard best at the playing position. A three-way system featuring woofer, mid-range and tweeter speakers precisely reproduce the rich natural resonance of the soundboard. Even more, each of the low-, mid-, and high-frequency bands has been given its own amplifier to prevent interference between bands. This innovative configuration allows the instrument’s outstanding sound system to reproduce the nuances of each individual note. For even greater sonic accuracy, feature speaker layouts optimized for the size of the instruments.