Bruno Tilz 213- S 2 vs Bruno Tilz 304- A 1
The Bruno Tilz 213- S 2 has a wider cup diameter, the Bruno Tilz 213- S 2 features a deeper cup, the Bruno Tilz 213- S 2 has a larger throat opening.
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
Bruno Tilz 213- S 2
• Baritone / Euphonium
CatalogThroat diameter4.60 mm / 0.1811 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 304- A 1
• Baritone / Euphonium
CatalogThroat diameter4.40 mm / 0.1732 in
Best suited for
High-volume projection — open throat for power
Throat Diameter
The Bruno Tilz 213- S 2 has a wider throat (4.60 mm / 0.1811 in vs 4.40 mm / 0.1732 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Which is better?
Both mouthpieces are categorized as "Catalog" — the physical dimensions above will determine which suits your embouchure and playing style better.