Unique 29+ Yamaha F325 Acoustic Guitar. The fingerboard and bridge are both made from rosewood. The f325d's tonewood combination includes a laminate spruce top, rosewood fingerboard and bridge, and meranti back and sides. The yamaha f325 features sapele back and sides, a laminated spruce top and a nato neck. Just because f325d is cheap doesn't mean they also have inferior quality. Yamaha F325 Acoustic Guitar - Yamaha F325d Vs Fg800 Which One Is Better For You This dreadnought style guitar comprises a laminated nature gloss spruce top with meranti back and sides.