Conn Imp. Precision 2 vs Conn Imp. Precision 4
the Conn Imp. Precision 2 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 2
• Tuba
GeneralCup depth
Best suited for
BBb bass / sousaphone general
Full rich tone in all registers
vs
Mouthpiece B
Conn Imp. Precision 4
• Tuba
GeneralCup depthDeep
Best suited for
Small Eb bass
Full rich tone
Cup Depth
The Conn Imp. Precision 2 has a — cup while the Conn Imp. 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.