Bruno Tilz 210-F 23 vs Bruno Tilz 210-F 43
The Bruno Tilz 210-F 43 has a wider cup diameter.
Mouthpiece A
Bruno Tilz 210-F 23
• Flugelhorn
CatalogCup diameter16.50 mm / 0.6496 in
Cup depthDeep
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-F 43
• Flugelhorn
CatalogCup diameter17.00 mm / 0.6693 in
Cup depthDeep
Rim width—
Throat diameter4.50 mm / 0.1772 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
Cup Diameter
The Bruno Tilz 210-F 43 has a cup diameter of 17.00 mm / 0.6693 in compared to 16.50 mm / 0.6496 in on the Bruno Tilz 210-F 23 — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
Throat diameters are essentially identical at 4.50 mm / 0.1772 in, so resistance feel will be comparable.
Which is better?
Both mouthpieces are categorized as "Catalog" — the physical dimensions above will determine which suits your embouchure and playing style better.