Conn Precision 4 vs Denis Wick 2.5CC
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Conn Precision 4
• Tuba
GeneralCup diameter—
Cup depthDeep
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Small Eb bass
Full rich tone
vs
Mouthpiece B
Denis Wick 2.5CC
• Tuba
Cup diameter32.00 mm / 1.2598 in
Cup depthDeep
Rim width7.20 mm / 0.2835 in
Throat diameter8.60 mm / 0.3386 in
BackboreV-type
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Depth
Both mouthpieces share a deep cup depth, so the sound character from depth alone will be very similar.
Material
The Conn Precision 4 is described as Silver-plated brass, and the Denis Wick 2.5CC as unspecified. Material affects mass, warmth, and how quickly the piece responds.
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.