Marcinkiewicz 18 vs Monette Tuba 94F (Lightweight)
Both mouthpieces share similar core dimensions — the differences are in the details.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Marcinkiewicz 18
• Tuba
Cup diameter32.77 mm / 1.2902 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Monette Tuba 94F (Lightweight)
• Tuba
Cup diameter—
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.