Bruno Tilz 211-B 15 vs Bruno Tilz 211-S 8
The Bruno Tilz 211-B 15 has a wider cup diameter, the Bruno Tilz 211-B 15 has a larger throat opening.
Mouthpiece A
Bruno Tilz 211-B 15
• French Horn
CatalogCup diameter18.00 mm
Cup depthMedium
Rim width—
Throat diameter4.30 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 211-S 8
• French Horn
CatalogCup diameter17.50 mm
Cup depthMedium
Rim width—
Throat diameter3.80 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Bruno Tilz 211-B 15 has a cup diameter of 18.00 mm compared to 17.50 mm on the Bruno Tilz 211-S 8 — a difference of +0.50 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bruno Tilz 211-B 15 has a wider throat (4.30 mm vs 3.80 mm). 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.