The Ibanez BTB20TH5-BRL Blue Reef Gradation is a premium 5-string bass designed to mark the 20th anniversary of the iconic BTB series — built for serious players who demand boutique-level craftsmanship and tone. Its neck-through-body construction features a 5-piece Maple/Walnut neck for superior sustain and stability, while the sculpted body combines Okoumé, Ash, and Maple for a rich, resonant tone with striking visual appeal. The Panga Panga fingerboard is fitted with 24 jumbo stainless steel frets for smooth playability and long-lasting performance. Equipped with a pair of Nordstrand Big Single pickups and Ibanez’s Custom Electronics 3-band EQ, this bass offers powerful, articulate tones with exceptional versatility. Additional pro-grade features include Ibanez MR5S mono-rail bridges for enhanced string isolation and tuning accuracy, plus precision die-cast hardware for rock-solid performance. A perfect fusion of modern engineering and classic elegance. Features Nyatoh neck Walnut fretboard Solid Sitka Spruce top Sapele back and sides Ibanez T-bar Undersaddle pickup Ibanez Custom Electronics Walnut bridge Modified FR hollow body w/ Fan bracing Side Sound Port 46mm width nut / 400mmR fretboard radius Specifications Body shape: FRH body Bracing: Fan Bracing for FRH Top: Solid Sitka Spruce top Back & sides: Sapele back & Sapele sides Neck: C ShapeNyatohSet-in neck Fretboard: Walnut fretboard Bridge: Walnut bridge Inlay: White dot inlay tuning machine: Gold Classical tuners nut material: Bone number of frets: 22 saddle material: Bone Strings: D'Addario® XTC45 string gauge: .028/.032/.040/.028W/.035W/.044W string space: 11.6mm factory tuning: 1E,2B,3G,4D,5A,6E pickup: Ibanez T-bar Undersaddle preamp: Ibanez Custom Electronics output jack: 1/4 Endpin Jack battery: CR2032 x2