Bach 1½C vs Conn Imp. Precision 5
the Bach 1½C features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bach 1½C
• Cornet
Cup depthMedium
vs
Mouthpiece B
Conn Imp. Precision 5
• Cornet
LeadCup depthShallow
Best suited for
Dance band / lead; standard on Conn 6B Victor
Bright tone; excellent in high register
Cup Depth
The Bach 1½C has a medium cup while the Conn Imp. Precision 5 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.