Conn Precision 4 vs Denis Wick 2.5CC
Both mouthpieces share similar core dimensions — the differences are in the details.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Precision 4
• Tuba
GeneralCup diameter—
Best suited for
Small Eb bass
Full rich tone
vs
Mouthpiece B
Denis Wick 2.5CC
• Tuba
Cup diameter32.00 mm / 1.2598 in
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.