Bach 24W vs Marcinkiewicz ST 4
The Marcinkiewicz ST 4 has a wider cup diameter, the Marcinkiewicz ST 4 features a deeper cup, the Bach 24W has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 24W
• Tuba
Backbore—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz ST 4
• Tuba
Backbore—
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.