Bruno Tilz 210-C 42 vs Bruno Tilz 210-S 4 E
the Bruno Tilz 210-C 42 has a larger throat opening.
Mouthpiece A
Bruno Tilz 210-C 42
• Flugelhorn
CatalogCup diameter16.50 mm / 0.6496 in
Cup depthShallow
Rim width—
Throat diameter4.50 mm / 0.1772 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 210-S 4 E
• Flugelhorn
CatalogCup diameter16.50 mm / 0.6496 in
Cup depthShallow
Rim width—
Throat diameter3.50 mm / 0.1378 in
Backbore—
Finish—
Material—
Best suited for
Screamer / high notes — tight throat with shallow cup
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.50 mm / 0.6496 in.
Cup Depth
Both mouthpieces share a shallow cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bruno Tilz 210-C 42 has a wider throat (4.50 mm / 0.1772 in vs 3.50 mm / 0.1378 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.