A.R.E. (Acoustic Resonance Enhancement) A.R.E. (Acoustic Resonance Enhancement) is an original wood reforming technology developed by Yamaha. . Through precise control of temperature, humidity, and atmospheric pressure, the molecular properties of the wood can be manipulated into a more acoustically ideal condition, similar to the molecular characteristics of woods in instruments that have been played for years. New Designed Bracing Pattern A modified non-scalloped bracing design retains the L series’ characteristic bright tone while enhancing low-end tone. High Comfortable Traditional Neck Profile A reevaluation of string spacing, string height, fingerboard binding, and neck taper led to a new neck shape that better fits today’s raditional players. The new design offers stable grip and smooth playability over the full length of the neck. 5-Ply Necks New 5-ply neck designs are constructed of rosewood and mahogany plies. The design integrates the neck, head, and body into a single unit creating a powerful, rich sound. This approach also creates a strong, stable neck that resists twisting and warping. LL Body This traditional Yamaha body style is known for its rich volume, a wide dynamic range, and excellent tonal balance. Beautiful, transparent tone is the result of a design that has been refined by artists around the globe. Specifications Body Shape: Yamaha Original JumboScale Length: 650 mm (25 9/16")Body Length: 513 mm (20 3/16")Total Length: 1046 mm (41 3/16")Body Width: 415 mm (16 5/16")Body Depth: 100-125 mm ( 3 15/16" - 4 15/16")Nut Width: 44 mm (1 3/4")String Spacing: 11 mmTop Material: Solid Engelmann Spruce with A.R.E.Back Material: Solid MahoganySide Material: Solid MahoganyNeck Material: Mahogany + Rosewood 5plyFingerboard Material: EbonyFingerboard Radius: 400 mm (15 3/4")Bridge Material: EbonyNut Material: UreaSaddle Material: UreaBridge Pins: Black ABS with White DotTuners: Die-cast Gold(TM29G)Body Binding: Maple + BlackSoundhole Inlay: Abalone + Black + WhitePickguard: Tortoise PatternBody Finish: GlossNeck Finish: MattElectronics: SRT Piezo Pickup (Passive)Controls: NoneConnections: LINE OUTStrings: Elixir NANOWEB 80/20 Bronze LightAccessories: Hex WrenchCase: Hard bag