I listened to and compared the computer with a USB output and a digital amplifier with a Sennheiser and Sony monitor head fan.Bechstein's mid to high notes are outstanding. Yamaha's YUS1 and YUS5 have cloudy sound overall. But the C3X sounds good. I felt that it sounded similar to Bösendorfer.I think the challenge is the sound of the hammer and its surroundings. I was a music production engineer when I was young and live in Philadelphia. He was in charge of the violin, but he owns a 1926 Bechstein L165 at home.