Bruno Tilz 231-C 2 vs Denis Wick 2.5CC
the Denis Wick 2.5CC has a larger throat opening.
Mouthpiece A
Bruno Tilz 231-C 2
• Tuba
CatalogCup diameter32.00 mm / 1.2598 in
Cup depthDeep
Rim width—
Throat diameter8.00 mm / 0.3150 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
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 Diameter
Both mouthpieces have virtually identical cup diameters at 32.00 mm / 1.2598 in.
Cup Depth
Both mouthpieces share a deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Denis Wick 2.5CC has a wider throat (8.60 mm / 0.3386 in vs 8.00 mm / 0.3150 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.