Yamaha YBB-621 Professional BB♭ Tuba

The YBB-621 is a compact 3/4-size tuba, highly regarded for its excellent response, precise intonation, and rich, focused tone. Its lighter weight and smaller size make it easier to handle while still delivering a full, resonant sound suitable for solos, ensembles, and professional orchestras.

Key Features:

• Key: BB♭

• Size: 3/4 Tuba (compact design, great for smaller players or portability)

• Valves: 4 front-action piston valves (hand-lapped for smooth operation)

• Bore: 18.5 mm (0.728″)

• Bell Diameter: 366 mm (14 3/8″)

• Body Material: Yellow brass

• Finish: Clear lacquer (or silver-plated, depending on model)