The Mason & Hamlin Virtuoso X Series represents the pinnacle of over 165 years of craftsmanship, innovation, and technology. The experience gained through continuous refinement and innovation has allowed us to create a piano designed for the highest degree of performance, and is the result of developing new, state-of-the-art features and substantially building upon others. The core of these updated features merges the impressive legacy of the Crown Retention System with our new Action Retention System, resulting in a piano that preserves both its tone and dynamic range, as well as the touch and feel of its action over the course of an entire century