Bach 11A vs Bach 11B
the Bach 11A features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bach 11A
• Cornet
Cup depthVery deep
vs
Mouthpiece B
Bach 11B
• Cornet
Cup depthDeep
Cup Depth
The Bach 11A has a very deep cup while the Bach 11B has a deep 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.