Bruno Tilz 305-D 5 vs Yamaha BL-60BL
The Yamaha BL-60BL has a wider cup diameter, the Bruno Tilz 305-D 5 features a deeper cup, the Yamaha BL-60BL has a larger throat opening.
Cup Diameter
The Yamaha BL-60BL has a cup diameter of 27.83 mm / 1.0957 in compared to 26.00 mm / 1.0236 in on the Bruno Tilz 305-D 5 — a difference of 1.83 mm / 0.0720 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bruno Tilz 305-D 5 has a medium cup while the Yamaha BL-60BL has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Yamaha BL-60BL has a wider throat (6.92 mm / 0.2724 in vs 6.30 mm / 0.2480 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.