Adamas NV-681 ARB Prototype

These photos come from an ad published in Japan years ago. If you are the owner, please feel free to contact me. Here's here's the original description translate from Japanese: This instrument appears to be a prototype of the limited edition NV-681 ARB, produced in 1994. The NV-681 ARB was a special project commissioned by Nakao Boeki (the authorized Japanese distributor at the time) titled the "NAKAO SPECIAL ADAMAS CENTURY." That limited run of 50 guitars was famous for using Old-Growth Sitka Spruce for the top board—wood that had already been seasoned for over 100 years since being harvested. Unique Prototype Characteristics While this specific guitar shares the same high-end specs, it lacks the "CENTURY" logo on the fingerboard and does not have an internal label. These factors strongly suggest it is a pre-production sample (prototype). Unlike the final production model, this is a pure acoustic version with no electronics mounted. Since approximately 25 years have passed since it was built, the top wood is now over 120 years old. Specifications & Condition Body: Brown Non-Cutaway, Deep Bowl. Neck: 2-piece Center-join Mahogany with a comfortable "Regular Grip" (approx. 42mm nut width). Fingerboard: Ebony. Bridge: Carving-free Walnut. Hardware: Gold-plated Schaller Rotomatic tuners (excellent condition, smooth operation). Soundhole: Signature Epaulette style. Wear: The nut, saddle, and frets are all original with almost no wear. The satin finish shows some minor glossing and surface scuffs, but there is no structural damage. Playability & Sound The neck is straight, and the truss rod is fully functional with plenty of room for adjustment. The action is currently set very low for effortless playability: 6th String at 12th Fret: 2.2mm 1st String at 12th Fret: 1.4mm The Sound: Thanks to the Deep Bowl design and the elite tonewood selection, the unplugged projection is powerful. The bass is massive and resonant, vibrating against your chest, while the highs are crisp and brilliant. While the Adamas series is already highly regarded for its acoustic tone, this dedicated acoustic-only prototype offers a uniquely captivating sound.