Kelly MC vs Yamaha HR-35C4
The Yamaha HR-35C4 has a wider cup diameter, the Kelly MC features a deeper cup, the Yamaha HR-35C4 has a larger throat opening.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Kelly MC
• French Horn
GeneralRim width—
Best suited for
High-volume projection — open throat for power
All-purpose French horn
vs
Mouthpiece B
Yamaha HR-35C4
• French Horn
Rim width—
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.