Bruno Tilz 310-M 28 vs Marcinkiewicz CH H2
The Marcinkiewicz CH H2 has a wider cup diameter, the Bruno Tilz 310-M 28 features a deeper cup, the Marcinkiewicz CH H2 has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bruno Tilz 310-M 28
• Tuba
CatalogCup diameter33.50 mm / 1.3189 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH H2
• Tuba
Cup diameter33.60 mm / 1.3228 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Marcinkiewicz CH H2 has a cup diameter of 33.60 mm / 1.3228 in compared to 33.50 mm / 1.3189 in on the Bruno Tilz 310-M 28 — a difference of 0.10 mm / 0.0039 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.