Bruno Tilz 231-C 4 vs Conn Precision 4
Both mouthpieces share similar core dimensions — the differences are in the details.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bruno Tilz 231-C 4
• Tuba
CatalogBackbore—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Precision 4
• Tuba
GeneralBackbore—
Best suited for
Small Eb bass
Full rich tone
Which is better?
The Bruno Tilz 231-C 4 is designed for catalog playing, while the Conn Precision 4 targets general use. Your best choice depends on your musical context.