Bob Reeves 43/F vs Denis Wick 5BFL
The Bob Reeves 43/F has a wider cup diameter, the Denis Wick 5BFL features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bob Reeves 43/F
• Flugelhorn
Cup diameter17.07 mm / 0.6720 in
vs
Mouthpiece B
Denis Wick 5BFL
• Flugelhorn
Cup diameter16.00 mm / 0.6299 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Bob Reeves 43/F has a cup diameter of 17.07 mm / 0.6720 in compared to 16.00 mm / 0.6299 in on the Denis Wick 5BFL — a difference of 1.07 mm / 0.0421 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.