The NATURA D550E is a solid Spruce top acoustic-electric Dreadnought featuring Walden's novel weight reducing Low-Mass bracing. It has a voice that is both clear and harmonically complex and is suitable for players looking for a full sized, loud instrument. A Glass-fibre reinforced Mahogany neck with Rosewood fingerboard ensure a lifetime of neck stability. NATURA 500. Distilled to the essence of what a great guitar should be, the 500 series guitar is the most affordable entry into the Natura line. Bookmatched, quartersawn soundboards from the Pacific Northwest provide the richness and tone found only in a Low-Mass braced solid top. Graphtech NuBone nut and saddle, an environmentally friendly UV Cured open-pore satin finish, and D'Addario coated EXP11 strings further contribute to sonic excellence. Walden MG-20 Active Electronics with onboard Tuner sounds great plugged in. 500 series guitars are tastefully detailed with black binding, an inlaid 2-ring rosette, a pearl Walden logo, and chrome die-cast tuners. Includes Walden gig bag.