Denis Wick 4BFL vs Giardinelli 6FL
The Giardinelli 6FL has a wider cup diameter, the Giardinelli 6FL features a deeper cup.
Mouthpiece A
Denis Wick 4BFL
• Flugelhorn
Cup diameter16.50 mm
Cup depthDeep
Rim width5.17 mm
Throat diameter4.58 mm
Backboreopen
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 6FL
• Flugelhorn
Cup diameter16.70 mm
Cup depthVery deep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Cup Diameter
The Giardinelli 6FL has a cup diameter of 16.70 mm compared to 16.50 mm on the Denis Wick 4BFL — a difference of +0.20 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Giardinelli 6FL has a very deep cup while the Denis Wick 4BFL has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.