Bruno Tilz 210-S 12 vs Bruno Tilz 210-S 4 E
The Bruno Tilz 210-S 12 has a wider cup diameter, the Bruno Tilz 210-S 12 has a larger throat opening.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bruno Tilz 210-S 12
• Flugelhorn
CatalogCup depth
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 210-S 4 E
• Flugelhorn
CatalogCup depthShallow
Best suited for
Screamer / high notes — tight throat with shallow cup
Which is better?
Both mouthpieces are categorized as "Catalog" — the physical dimensions above will determine which suits your embouchure and playing style better.