Marcinkiewicz 307FL vs Monette FLG 1-4
the Marcinkiewicz 307FL has a larger throat opening.
Mouthpiece A
Marcinkiewicz 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
vs
Mouthpiece B
Monette FLG 1-4
• Flugelhorn
Cup diameter—
Cup depthVery deep
Rim width—
Throat diameter3.99 mm / 0.1571 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Marcinkiewicz 307FL has a wider throat (4.32 mm / 0.1701 in vs 3.99 mm / 0.1571 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.