Bach 1E vs Curry 70S
The Curry 70S has a wider cup diameter.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bach 1E
• Trumpet
Cup diameter17.00 mm / 0.6693 in
vs
Mouthpiece B
Curry 70S
• Trumpet
Cup diameter17.02 mm / 0.6700 in
Cup Diameter
The Curry 70S has a cup diameter of 17.02 mm / 0.6700 in compared to 17.00 mm / 0.6693 in on the Bach 1E — a difference of 0.02 mm / 0.0007 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.