Bruno Tilz 231-B 3 vs Bruno Tilz 310-M 32
the Bruno Tilz 310-M 32 features a deeper cup, the Bruno Tilz 310-M 32 has a larger throat opening.
Mouthpiece A
Bruno Tilz 231-B 3
• Tuba
CatalogCup diameter33.00 mm
Cup depthShallow
Rim width—
Throat diameter7.40 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 310-M 32
• Tuba
CatalogCup diameter33.00 mm
Cup depthDeep
Rim width—
Throat diameter8.30 mm
Backbore—
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 33.00 mm.
Cup Depth
The Bruno Tilz 310-M 32 has a deep cup while the Bruno Tilz 231-B 3 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bruno Tilz 310-M 32 has a wider throat (8.30 mm vs 7.40 mm). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Which is better?
Both mouthpieces are categorized as "Catalog" — the physical dimensions above will determine which suits your embouchure and playing style better.