Conn Imp. Precision 3 vs Giardinelli 7VM
The Giardinelli 7VM has a wider cup diameter.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Imp. Precision 3
• Cornet
GeneralCup diameter16.41 mm / 0.6461 in
Best suited for
All-round versatile — balanced cup for general playing
Most popular model; all-around
Bright quality of tone in all registers
vs
Mouthpiece B
Giardinelli 7VM
• Cornet
Cup diameter16.50 mm / 0.6496 in
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
The Giardinelli 7VM has a cup diameter of 16.50 mm / 0.6496 in compared to 16.41 mm / 0.6461 in on the Conn Imp. Precision 3 — a difference of 0.09 mm / 0.0035 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.