Giardinelli 1C vs Yamaha CR-14ES-GP
The Giardinelli 1C has a wider cup diameter, the Yamaha CR-14ES-GP features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Giardinelli 1C
• Cornet
Cup diameter17.50 mm / 0.6890 in
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Yamaha CR-14ES-GP
• Cornet
Cup diameter16.86 mm / 0.6638 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Giardinelli 1C has a cup diameter of 17.50 mm / 0.6890 in compared to 16.86 mm / 0.6638 in on the Yamaha CR-14ES-GP — a difference of 0.64 mm / 0.0252 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.