Denis Wick SFL vs Giardinelli 17FL
The Denis Wick SFL has a wider cup diameter, the Giardinelli 17FL features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Denis Wick SFL
• Flugelhorn
Cup diameter16.00 mm / 0.6299 in
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 17FL
• Flugelhorn
Cup diameter15.00 mm / 0.5906 in
Cup Diameter
The Denis Wick SFL has a cup diameter of 16.00 mm / 0.6299 in compared to 15.00 mm / 0.5906 in on the Giardinelli 17FL — a difference of 1.00 mm / 0.0394 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.