Bruno Tilz 211-B 13 vs Bruno Tilz 211-B 4
The Bruno Tilz 211-B 4 has a wider cup diameter, the Bruno Tilz 211-B 4 has a larger throat opening.
Mouthpiece A
Bruno Tilz 211-B 13
• French Horn
CatalogCup diameter17.00 mm
Cup depthMedium
Rim width—
Throat diameter3.90 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 211-B 4
• French Horn
CatalogCup diameter17.50 mm
Cup depthMedium
Rim width—
Throat diameter4.00 mm
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Bruno Tilz 211-B 4 has a cup diameter of 17.50 mm compared to 17.00 mm on the Bruno Tilz 211-B 13 — 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 4 has a wider throat (4.00 mm vs 3.90 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.