Bach 1½C vs Marcinkiewicz 310
The Marcinkiewicz 310 has a wider cup diameter, the Marcinkiewicz 310 features a deeper cup, the Marcinkiewicz 310 has a larger throat opening.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bach 1½C
• Cornet
Rim width—
vs
Mouthpiece B
Marcinkiewicz 310
• Cornet
Rim width—
Best suited for
Orchestral playing — large cup for full, dark tone
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.