Conn Precision 3 vs Conn Simone Mantia 11
the Conn Precision 3 features a deeper cup.
Mouthpiece A
Conn Precision 3
• Trombone
GeneralCup diameter—
Cup depth
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Musicians with large lips; all kinds of band work
Full round tone; ideal for large lips
vs
Mouthpiece B
Conn Simone Mantia 11
• Trombone
GeneralCup diameter—
Cup depth
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
All-around trombone and euphonium
Narrower cup than Model 10; all-around use
Cup Depth
The Conn Precision 3 has a — cup while the Conn Simone Mantia 11 has a — cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
Both mouthpieces share the same listed material (Silver-plated brass).
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.