Bach 9A vs Curry 1.25 DC
The Curry 1.25 DC has a wider cup diameter, the Curry 1.25 DC has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bach 9A
• Cornet
Cup diameter16.05 mm / 0.6319 in
vs
Mouthpiece B
Curry 1.25 DC
• Cornet
Cup diameter17.07 mm / 0.6720 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Curry 1.25 DC has a cup diameter of 17.07 mm / 0.6720 in compared to 16.05 mm / 0.6319 in on the Bach 9A — a difference of 1.02 mm / 0.0401 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.