The Artwood Vintage series now showcases another vintage element by applying an "aging" process to the tonewood: "Thermo Aged" tone wood, made by a special drying process at a high temperature which is commonly known as "baking" or "torrefaction." Thermo Aged Solid top w/Thermo Aged Spruce X bracing delivers ample volume and an enormous frequency range. Thermo Aged solid Mahogany back and Thermo Aged Spruce back bracing offers a wide open resonant sound with vivid tone projection. A bone nut and saddle provide optimal transference of the natural string vibration. Grover open gear tuners w/butterbean knobs(18:1 gear ratio) ensure accurate, stable tuning and help reduce the headstock weight, while contributing to the vintage look. Ibanez's original Mother of Pearl fretboard inlay adds to the timeless look Artwood Vintage guitars. D'Addario Nickel Bronze strings emphasize the natural voice of Thermo Aged wood with incredible clarity, resonance and projection.