Crown Retention System
The Crown Retention System is unique to Mason & Hamlin and lends stability to the piano. The system consists of the tension resonator (designed and patented for Mason & Hamlin by Richard W. Gertz in 1900), heavy case ribs, thick, hard rock maple rims, and eastern white spruce soundboard. As commonly observed on Mason & Hamlin pianos built in the late 19th and early 20th century, the Crown Retention System has preserved the crown of the soundboard, and the original power and tone, throughout the life of the piano. For more information about Mason & Hamlin's signature Crown Retention System, please click here.