Bach 1 vs Schilke M150D
The Schilke M150D has a wider cup diameter, the Bach 1 features a deeper cup, the Schilke M150D has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bach 1
• Trumpet
Backbore—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Schilke M150D
• Trumpet
Backbore24 / .1520"
Best suited for
High-volume projection — open throat for power
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.