Conn Imp. Precision 1 vs Conn Imp. Precision 4
the Conn Imp. Precision 1 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 1
• Tuba
OrchestralCup depth
Best suited for
BBb bass / sousaphone orchestral
Exceptionally full deep rich tone
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 1 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?
The Conn Imp. Precision 1 is designed for orchestral playing, while the Conn Imp. Precision 4 targets general use. Your best choice depends on your musical context.