World-renowned Yamaha FG series introduces TransAcoustic model with reverb and chorus effect built in to the body of the guitar, no amp required! Solid Spruce top with Mahogany back and sides. Listen, play, be inspired! An actuator installed on the inner surface of the guitar back vibrates in response to the vibrations of the strings. The vibrations of the actuator are then conveyed to the body of the guitar, and to the air in and around the guitar body, generating authentic reverb and chorus sounds from inside the body. The Yamaha TransAcoustic Guitar creates an incredible experience without needing any external amplification or effects, just the guitar itself. It's the most inspiring, engaging acoustic guitar you've ever played. Brown Sunburst finish.