Schilke 42 vs Schilke 43A
The Schilke 43A has a wider cup diameter.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Schilke 42
• Trombone
Backbore15/64 .2344"
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Schilke 43A
• Trombone
Backbore15/64 .2344"
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.