Bach 1½C vs Conn Precision 1
The Bach 1½C has a wider cup diameter, the Conn Precision 1 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 Precision 1
• Cornet
GeneralCup depth
Best suited for
All-around players; comfortable wide rim
Full round tone; suited to low notes
Cup Depth
The Conn Precision 1 has a — cup while the Bach 1½C has a medium 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.