Bach 25 vs Yamaha BB-66B
The Yamaha BB-66B has a wider cup diameter, the Bach 25 features a deeper cup, the Yamaha BB-66B has a larger throat opening.
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
Bach 25
• Tuba
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Yamaha BB-66B
• Tuba
Material—
Best suited for
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.