Yamaha GCX31C Yamaha classical guitars are known worldwide for their quality of materials and construction. Now Yamaha has applied its finest acoustic electric pre-amp, system 49 to a world-class concert guitar. The result is an instrument that will satisfy the most demanding classical, jazz or fingerstyle nylon string artist, and allow the player to achieve the finest acoustic electric sound when plugged into a sound system or recording console. Top: Solid Spruce Back & Sides: Solid Rosewood Neck: Mahogany Fingerboard: Ebony Pickups: Piezo + Microphone Bridge: Rosewood Tuners: Gold Preamp: Systems 49 2 way pre-amp System Finishes: Natural Warranty: Yamaha Limited Lifetime