Bruno Tilz 210-S 12 vs Marcinkiewicz CH 307FL
The Marcinkiewicz CH 307FL has a wider cup diameter, the Marcinkiewicz CH 307FL has a larger throat opening.
Mouthpiece A
Bruno Tilz 210-S 12
• Flugelhorn
CatalogCup diameter17.00 mm / 0.6693 in
Cup depth
Rim width—
Throat diameter3.90 mm / 0.1535 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH 307FL
• Flugelhorn
Cup diameter17.20 mm / 0.6772 in
Cup depthVery deep
Rim width—
Throat diameter4.32 mm / 0.1701 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 307FL has a cup diameter of 17.20 mm / 0.6772 in compared to 17.00 mm / 0.6693 in on the Bruno Tilz 210-S 12 — a difference of 0.20 mm / 0.0079 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Throat Diameter
The Marcinkiewicz CH 307FL has a wider throat (4.32 mm / 0.1701 in vs 3.90 mm / 0.1535 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.