Yamaha YBB-645G Professional BB♭ Tuba

• The YBB-645G is a professional BB♭ tuba featuring a rotary valve system, delivering that classic Teutonic tonal character—deep, warm, dark, and rich in color, yet engineered for precise intonation and responsive playability.

Specifications

• Key: BB♭

• Body Material: Gold brass — contributes a slightly reddish hue and adds depth and warmth to the instrument’s overall sound

• Bell Diameter: 419 mm (16½″)

• Bore Size: 20.7 mm (0.815″)

• Height: 1,018 mm

• Valves: 4 rotary valves

• Finish: Clear lacquer over the gold brass body