Conn Precision 1 vs Denis Wick 3
The Denis Wick 3 has a wider cup diameter, the Conn Precision 1 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Precision 1
• Cornet
GeneralCup diameter16.56 mm / 0.6520 in
Best suited for
All-around players; comfortable wide rim
Full round tone; suited to low notes
vs
Mouthpiece B
Denis Wick 3
• Cornet
Cup diameter16.75 mm / 0.6594 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Denis Wick 3 has a cup diameter of 16.75 mm / 0.6594 in compared to 16.56 mm / 0.6520 in on the Conn Precision 1 — a difference of 0.19 mm / 0.0075 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.