Conn Harry Glanz 7M vs Conn Precision 3
Both mouthpieces share similar core dimensions — the differences are in the details.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Conn Harry Glanz 7M
• Cornet
LeadCup diameter—
Best suited for
Harry Glanz signature model 7M
Lead/commercial; endorsed by Harry Glanz
vs
Mouthpiece B
Conn Precision 3
• Cornet
GeneralCup diameter16.41 mm / 0.6461 in
Best suited for
All-round versatile — balanced cup for general playing
All-around use; most popular model
Bright quality of tone in all registers; good all-around
Which is better?
The Conn Harry Glanz 7M is designed for lead playing, while the Conn Precision 3 targets general use. Your best choice depends on your musical context.