Bruno Tilz 302-3 vs Yamaha HR-32C4
The Bruno Tilz 302-3 has a wider cup diameter, the Bruno Tilz 302-3 features a deeper cup, the Bruno Tilz 302-3 has a larger throat opening.
Cup Diameter
The Bruno Tilz 302-3 has a cup diameter of 17.50 mm / 0.6890 in compared to 17.48 mm / 0.6882 in on the Yamaha HR-32C4 — a difference of 0.02 mm / 0.0008 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bruno Tilz 302-3 has a deep cup while the Yamaha HR-32C4 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bruno Tilz 302-3 has a wider throat (4.00 mm / 0.1575 in vs 3.98 mm / 0.1567 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.