Sonic Sitka Vault 2546 Back and Sides Koa grading structure:AAAA – highest

Koa grading structure:AAAA – highest quality

allowing you to choose the piece that exactly fits your needs

light knot shadow towards the waist / upper bout of the pattern

uniform grain

you’ll find spruce

Sonic Sitka Vault 2546 Back and Sides Koa grading structure:AAAA – highestAll sonically graded tonewood offered in the Pacific Rim Tonewoods Vault includes the material properties for that specific set. 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. Sonic grading is fundamentally different from traditional grading because the process relies on data