Bach 5MV vs Bach 8½A
The Bach 5MV has a wider cup diameter, the Bach 8½A features a deeper cup, the Bach 5MV has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 5MV
• Cornet
Backbore—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bach 8½A
• Cornet
Backbore—
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.