Conn Imp. Precision 3 vs Conn Precision 4
the Conn Imp. 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 Imp. Precision 3
• Tuba
GeneralCup depth
Best suited for
Large Eb bass
Full round tone
vs
Mouthpiece B
Conn Precision 4
• Tuba
GeneralCup depthDeep
Best suited for
Small Eb bass
Full rich tone
Cup Depth
The Conn Imp. Precision 3 has a — cup while the Conn Precision 4 has a deep 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.