Bruno Tilz 211-D 7 vs Kelly 31
The Bruno Tilz 211-D 7 has a wider cup diameter, the Kelly 31 features a deeper cup, the Bruno Tilz 211-D 7 has a larger throat opening.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bruno Tilz 211-D 7
• French Horn
CatalogCup depthShallow
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Kelly 31
• French Horn
GeneralCup depth
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
French horn deep cup
Cup Depth
The Kelly 31 has a — cup while the Bruno Tilz 211-D 7 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Which is better?
The Bruno Tilz 211-D 7 is designed for catalog playing, while the Kelly 31 targets general use. Your best choice depends on your musical context.