Denis Wick 5BFL vs Marcinkiewicz CH BSC FL
The Marcinkiewicz CH BSC FL has a wider cup diameter, the Denis Wick 5BFL features a deeper cup, the Denis Wick 5BFL has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Denis Wick 5BFL
• Flugelhorn
Cup diameter16.00 mm / 0.6299 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH BSC FL
• Flugelhorn
Cup diameter16.74 mm / 0.6591 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Marcinkiewicz CH BSC FL has a cup diameter of 16.74 mm / 0.6591 in compared to 16.00 mm / 0.6299 in on the Denis Wick 5BFL — a difference of 0.74 mm / 0.0291 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.