Marcinkiewicz E5B. Shew #2 vs Marcinkiewicz 6 / 10.5C
The Marcinkiewicz 6 / 10.5C has a wider cup diameter.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Marcinkiewicz E5B. Shew #2
• Trumpet
Backbore—
vs
Mouthpiece B
Marcinkiewicz 6 / 10.5C
• Trumpet
Backbore—
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.