Marcinkiewicz CH BSC FL vs Yamaha FH-14F4
The Yamaha FH-14F4 has a wider cup diameter, the Yamaha FH-14F4 features a deeper cup, the Marcinkiewicz CH BSC FL has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Marcinkiewicz CH BSC FL
• Flugelhorn
Throat diameter4.39 mm / 0.1728 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Yamaha FH-14F4
• Flugelhorn
Throat diameter4.30 mm / 0.1693 in
Best suited for
High-volume projection — open throat for power
Throat Diameter
The Marcinkiewicz CH BSC FL has a wider throat (4.39 mm / 0.1728 in vs 4.30 mm / 0.1693 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.