Bruno Tilz 211-B 15 vs Bruno Tilz 302-30
the Bruno Tilz 211-B 15 has a larger throat opening.
Mouthpiece A
Bruno Tilz 211-B 15
• French Horn
CatalogCup diameter18.00 mm / 0.7087 in
Cup depthMedium
Rim width—
Throat diameter4.30 mm / 0.1693 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 302-30
• French Horn
CatalogCup diameter18.00 mm / 0.7087 in
Cup depthMedium
Rim width—
Throat diameter4.20 mm / 0.1654 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 18.00 mm / 0.7087 in.
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 / 0.1693 in vs 4.20 mm / 0.1654 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.