Fully hand-carved, the AV20s Spruce top, Maple neck, back & sides are seasoned & aged 5+ years. Produces a rich & sweet, yet powerful sound. Reddish-golden shading with highly flamed back & sides. Solid Boxwood fittings. Thomastik Dominant strings. Shop-adjusted by Yamaha-trained professionals to meet and exceed MENC standards. A Yamaha 5-year warranty covers any workmanship issues.