The All-New Core Series brings a new level of refinement to all-solid acoustic guitars. Designed for pure tone and enhanced playability, these instruments feature semi-gloss finishes and exotic tone woods that add unique sonic character and visual elegance. Solid Formosan koa back and sides make this Grand Auditorium come alive— the entire body resonates as one. Native to Taiwan, this koa-family wood offers beautiful grain and warm tone reminiscent of Hawaiian koa. Paired with a solid spruce top, the Core-GA FKoa delivers rich resonance and harmonic depth that only all-solid construction can provide.