Conn Precision 3 vs Conn Precision 3A
the Conn Precision 3 features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Conn Precision 3
• Trombone
GeneralCup depth
Best suited for
Musicians with large lips; all kinds of band work
Full round tone; ideal for large lips
vs
Mouthpiece B
Conn Precision 3A
• Trombone
GeneralCup depth
Best suited for
General trombone use
Good round tone in all registers; all-around
Cup Depth
The Conn Precision 3 has a — cup while the Conn Precision 3A has a — cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Which is better?
Both mouthpieces are categorized as "General" — the physical dimensions above will determine which suits your embouchure and playing style better.