4 Piece Sonic Sitka Vault 5712

PRT is proud to bring a 4 piece top to market. These tops allow us to make soundboards from smaller diameter logs and to utilize each log more completely. Four piece tops are cut from a smaller section of a tree, representing less of any tree's life (say 60 years, instead of 120), and are therefore more consistent in all of their physical properties. Density, Q, and Stiffness are all provided, allowing you to choose the piece that exactly fits your needs. In addition to the data provided, High Q (Q >= 160) and High Stiffness boards are exclusively available in the Vault. Every sonically graded board is required to meet the following specifications: Density in the range of 350 - 500 kg/m3 Stiffness within 10% of the mean Damping (Q) >= 150