Bach 1¼C vs Curry 90C
The Curry 90C has a wider cup diameter.
Mouthpiece A
Bach 1¼C
• Trumpet
Cup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
vs
Mouthpiece B
Curry 90C
• Trumpet
Cup diameter17.53 mm / 0.6900 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1440 in
Backbore—
Finish—
Material—
Cup Diameter
The Curry 90C has a cup diameter of 17.53 mm / 0.6900 in compared to 17.00 mm / 0.6693 in on the Bach 1¼C — a difference of 0.53 mm / 0.0207 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
Throat diameters are essentially identical at 3.66 mm / 0.1441 in, so resistance feel will be comparable.
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.