Bruno Tilz 211-SB 4 T vs Yamaha HR-29B
The Yamaha HR-29B has a wider cup diameter, the Bruno Tilz 211-SB 4 T features a deeper cup, the Bruno Tilz 211-SB 4 T has a larger throat opening.
Cup Diameter
The Yamaha HR-29B has a cup diameter of 17.07 mm / 0.6720 in compared to 17.00 mm / 0.6693 in on the Bruno Tilz 211-SB 4 T — a difference of 0.07 mm / 0.0028 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bruno Tilz 211-SB 4 T has a medium cup while the Yamaha HR-29B has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bruno Tilz 211-SB 4 T has a wider throat (4.00 mm / 0.1575 in vs 3.90 mm / 0.1535 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.