Bruno Tilz 213- D 3 vs Bruno Tilz 213- S 2
The Bruno Tilz 213- D 3 has a wider cup diameter, the Bruno Tilz 213- D 3 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 213- D 3
• Baritone / Euphonium
CatalogCup depthMedium
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 213- S 2
• Baritone / Euphonium
CatalogCup depthMedium
Best suited for
High-volume projection — open throat for power
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Which is better?
Both mouthpieces are categorized as "Catalog" — the physical dimensions above will determine which suits your embouchure and playing style better.