Yamaha YBB321 4-valve Bb Tuba (With Case & Mouthpiece)

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Comes With Mouthpiece

Intermediate Series, Key: BBb, Material: Yellow brass, Top action valves: 4 pistons, Bell: 443mm (17-1/2″), Bore: 18.5-19.5mm (0.728-0.768″), Finish: Clear lacquer/ Silver-Plated

  • Bore Size: .728-.768"
  • Bell Diameter: 17-1/2"
  • Body Material: Yellow Brass
  • Lacquer finish
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YBB-321 is an excellent choice for those who demand a high quality BBb tuba sound, yet must consider their budget. It features a strong warm tone, and is easy to play, with accurate intonation.


Hand-lapped pistons

Hand-lapping is a time-consuming finishing process which results in superior valve fit for noiseless, responsive action and easy tone changes.

Hand-lapped slides

Hand-lapping achieves the perfect balance between airtightness and smooth action.


The excellent intonation of the YBB-321 helps to foster a feel for correct pitch in beginning players.


The responsiveness of the YBB-321 assists beginning players in learning the phrasing of the tuba.


Finish: Clear Lacquer YBB321/ Silver-Plated YBB321S (Additional Cost)

Number of Valves: 4 Pistons

Bell Size: 443mm (17-1/2")

Bore Size: .728- .768"

Body Material: Yellow Brass

Key: Bb

Mouthpiece: 67C4