Bruno Tilz 310-M 41 vs Marcinkiewicz CH N4
The Marcinkiewicz CH N4 has a wider cup diameter, the Bruno Tilz 310-M 41 has a larger throat opening.
Mouthpiece A
Bruno Tilz 310-M 41
• Tuba
CatalogCup diameter33.00 mm / 1.2992 in
Cup depth
Rim width—
Throat diameter8.20 mm / 0.3228 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH N4
• Tuba
Cup diameter33.66 mm / 1.3252 in
Cup depthVery deep
Rim width—
Throat diameter7.67 mm / 0.3020 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Marcinkiewicz CH N4 has a cup diameter of 33.66 mm / 1.3252 in compared to 33.00 mm / 1.2992 in on the Bruno Tilz 310-M 41 — a difference of 0.66 mm / 0.0260 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Throat Diameter
The Bruno Tilz 310-M 41 has a wider throat (8.20 mm / 0.3228 in vs 7.67 mm / 0.3020 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.