Conn Imp. Precision 2 vs Conn Precision 4
the Conn Imp. Precision 2 features a deeper cup.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Imp. Precision 2
• Cornet
GeneralCup diameter16.41 mm / 0.6461 in
Best suited for
Players wanting volume; narrower rim than Model 1
Plenty of volume; big tone
vs
Mouthpiece B
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
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.41 mm / 0.6461 in.
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.