Giardinelli C12 vs Marcinkiewicz CH R 9S
The Marcinkiewicz CH R 9S has a wider cup diameter, the Marcinkiewicz CH R 9S has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Giardinelli C12
• French Horn
Backbore.189"
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH R 9S
• French Horn
Backbore—
Best suited for
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.