Bach 12 vs Denis Wick 2.5CC
The Bach 12 has a wider cup diameter, the Denis Wick 2.5CC features a deeper cup, the Denis Wick 2.5CC has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 12
• Tuba
Backbore—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick 2.5CC
• Tuba
BackboreV-type
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.