Conn Precision 4 vs Denis Wick 4
The Conn Precision 4 has a wider cup diameter, the Denis Wick 4 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Precision 4
• Cornet
GeneralCup diameter16.41 mm / 0.6461 in
Best suited for
All-round versatile — balanced cup for general playing
Players with large lips; close to Bach 2C/Schilke 16C4
Bright tone; same as Model 3 with wide rim
vs
Mouthpiece B
Denis Wick 4
• Cornet
Cup diameter16.40 mm / 0.6457 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Conn Precision 4 has a cup diameter of 16.41 mm / 0.6461 in compared to 16.40 mm / 0.6457 in on the Denis Wick 4 — a difference of 0.01 mm / 0.0004 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.