Conn Imp. Precision 3 vs Conn Precision 3
Both mouthpieces share similar core dimensions — the differences are in the details.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Conn Imp. Precision 3
• Trombone
GeneralBackbore—
Best suited for
Large lips; all band work
Full round tone
vs
Mouthpiece B
Conn Precision 3
• Trombone
GeneralBackbore—
Best suited for
Musicians with large lips; all kinds of band work
Full round tone; ideal for large lips
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.