Bach 1½C vs Schilke 13B
The Bach 1½C has a wider cup diameter, the Schilke 13B features a deeper cup, the Bach 1½C has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 1½C
• Trumpet
Backbore—
vs
Mouthpiece B
Schilke 13B
• Trumpet
Backbore26
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.