Conn Connstellation 7CN vs Conn Precision 2
The Conn Connstellation 7CN has a wider cup diameter.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Connstellation 7CN
• Cornet
GeneralCup diameter16.42 mm / 0.6465 in
Best suited for
Trumpet players seeking precise matched dimensions
Size 7 (16.42mm); larger cup; fuller lower register; Narrow rim; smaller inner radius; sharper bite.
vs
Mouthpiece B
Conn Precision 2
• Cornet
GeneralCup diameter16.41 mm / 0.6461 in
Best suited for
Players wanting plenty of volume; medium rim
Full volume; big tone
Cup Diameter
The Conn Connstellation 7CN has a cup diameter of 16.42 mm / 0.6465 in compared to 16.41 mm / 0.6461 in on the Conn Precision 2 — 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?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.