Giardinelli C4 vs Yamaha HR-32-GP
The Giardinelli C4 has a wider cup diameter, the Giardinelli C4 features a deeper cup, the Giardinelli C4 has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Giardinelli C4
• French Horn
Throat diameter5.30 mm
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Yamaha HR-32-GP
• French Horn
Throat diameter4.40 mm
Best suited for
High-volume projection — open throat for power
Throat Diameter
The Giardinelli C4 has a wider throat (5.30 mm vs 4.40 mm). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.