Denis Wick 3 vs Giardinelli 12S
The Denis Wick 3 has a wider cup diameter, the Denis Wick 3 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Denis Wick 3
• Cornet
Cup diameter16.75 mm / 0.6594 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Giardinelli 12S
• Cornet
Cup diameter15.50 mm / 0.6102 in
Best suited for
Lead / commercial — shallow cup for brightness and range
Cup Diameter
The Denis Wick 3 has a cup diameter of 16.75 mm / 0.6594 in compared to 15.50 mm / 0.6102 in on the Giardinelli 12S — a difference of 1.25 mm / 0.0492 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.