Full size 3-valve convertible.
The BBb Full size 4/4 marching tuba has full, rich sound and great projection. Add in the convertible feature and you have a smart purchase for any band program that is committed to a quality marching and concert band program. Kanstul is one of the greatest brass design innovators and Tama has a solid understanding of marching bands' needs. It is an ideal marriage of core competencies that has resulted in a new alternative solution for marching band challenges.