Bach 12C vs Curry 7M
The Curry 7M has a wider cup diameter, the Curry 7M features a deeper cup, the Curry 7M has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Bach 12C
• Trombone
Throat diameter5.85 mm / 0.2303 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Curry 7M
• Trombone
Throat diameter6.53 mm / 0.2570 in
Best suited for
High-volume projection — open throat for power
Throat Diameter
The Curry 7M has a wider throat (6.53 mm / 0.2570 in vs 5.85 mm / 0.2303 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.