Which has a bigger cup — Denis Wick 4B or Kelly 6V?

The Denis Wick 4B has a cup diameter of 16.50 mm / 0.6496 in compared to 16.00 mm / 0.6299 in on the Kelly 6V — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Denis Wick 4B and Kelly 6V?

The Kelly 6V has a — cup while the Denis Wick 4B has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Denis Wick 4B vs Kelly 6V

Name: Kelly 6V
Brand: Kelly

The Denis Wick 4B has a wider cup diameter, the Kelly 6V features a deeper cup, the Denis Wick 4B has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Denis Wick 4B

• Cornet

Rim width5.17 mm / 0.2035 in

Best suited for

🎵All-round versatile — balanced cup for general playing

📣High-volume projection — open throat for power

Mouthpiece B

Kelly 6V

• Cornet

Dark/Deep

Rim width—

Best suited for

📣High-volume projection — open throat for power

📋Deep V-cup to fill out cornet sound

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.

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Denis Wick 4B vs Kelly 6V

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Denis Wick 4B with others

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