Conn Imp. Precision 2 vs Conn Precision 2
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 Imp. Precision 2
• Trombone
LeadCup diameter—
Best suited for
Solo; high register
Big bright tone; excellent solo
vs
Mouthpiece B
Conn Precision 2
• Trombone
LeadCup diameter—
Best suited for
Solo work; high register; bright
Big bright tone; excellent solo
Which is better?
Both mouthpieces are categorized as "Lead" — the physical dimensions above will determine which suits your embouchure and playing style better.