Bach 12E vs Marcinkiewicz 12C
The Marcinkiewicz 12C has a wider cup diameter, the Marcinkiewicz 12C features a deeper cup, the Marcinkiewicz 12C has a larger throat opening.
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
Bach 12E
• Trombone
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz 12C
• Trombone
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
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.