Denis Wick 4 vs Kelly MC
The Denis Wick 4 has a wider cup diameter, the Denis Wick 4 has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Denis Wick 4
• French Horn
Throat diameter4.70 mm / 0.1850 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Kelly MC
• French Horn
GeneralThroat diameter3.80 mm / 0.1496 in
Best suited for
High-volume projection — open throat for power
All-purpose French horn
Throat Diameter
The Denis Wick 4 has a wider throat (4.70 mm / 0.1850 in vs 3.80 mm / 0.1496 in). 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.