Conn Precision 3 vs Conn Precision 4
the Conn Precision 4 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 4
• Trombone
OrchestralCup depth
Best suited for
Bass trombone
Full rich deep tone quality
Cup Depth
The Conn Precision 4 has a — cup while the Conn Precision 3 has a — cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Which is better?
The Conn Precision 3 is designed for general playing, while the Conn Precision 4 targets orchestral use. Your best choice depends on your musical context.