RainSong Guitars Studio Series S-OM1000N2 Acoustic-Electric Guitar Unique Guitar crafted entirely using Carbon/Graphite & Glass fiber composites Unique Guitar crafted entirely using Carbon/Graphite & Glass fiber composites Single-piece all-graphite neck and composite fingerboard with an adjustable truss rod Brace-free Soundboard/Body and Projection Tuned Layering for crystalline detail, warmth and volume of the classic Carbon tone Fishman Prefix electronics featuring an on-board tuner.