Bach 2½C vs Curry 7 P
The Curry 7 P has a wider cup diameter, the Curry 7 P has a larger throat opening.
Mouthpiece A
Bach 2½C
• Cornet
Cup diameter16.40 mm / 0.6457 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
Curry 7 P
• Cornet
Cup diameter16.56 mm / 0.6520 in
Cup depthMedium
Rim width—
Throat diameter3.70 mm / 0.1455 in
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
The Curry 7 P has a cup diameter of 16.56 mm / 0.6520 in compared to 16.40 mm / 0.6457 in on the Bach 2½C — a difference of 0.16 mm / 0.0063 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Curry 7 P has a wider throat (3.70 mm / 0.1455 in vs 3.66 mm / 0.1441 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.