Bruno Tilz 211-A 2 vs Yamaha HR-29B
The Yamaha HR-29B has a wider cup diameter, the Yamaha HR-29B features a deeper cup, the Yamaha HR-29B has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bruno Tilz 211-A 2
• French Horn
CatalogCup diameter16.50 mm / 0.6496 in
Best suited for
Screamer / high notes — tight throat with shallow cup
vs
Mouthpiece B
Yamaha HR-29B
• French Horn
Cup diameter17.07 mm / 0.6720 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Yamaha HR-29B has a cup diameter of 17.07 mm / 0.6720 in compared to 16.50 mm / 0.6496 in on the Bruno Tilz 211-A 2 — a difference of 0.57 mm / 0.0224 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.