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 taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Kelly MC
• French Horn
GeneralBackboreM
Best suited for
High-volume projection — open throat for power
All-purpose French horn
vs
Mouthpiece B
Yamaha HR-35C4
• French Horn
BackboreStandard
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.