Bruno Tilz 305-D 5 vs Marcinkiewicz 11 BS
The Bruno Tilz 305-D 5 has a wider cup diameter, the Marcinkiewicz 11 BS features a deeper cup, the Bruno Tilz 305-D 5 has a larger throat opening.
Cup Diameter
The Bruno Tilz 305-D 5 has a cup diameter of 26.00 mm / 1.0236 in compared to 25.37 mm / 0.9988 in on the Marcinkiewicz 11 BS — a difference of 0.63 mm / 0.0248 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Marcinkiewicz 11 BS has a deep cup while the Bruno Tilz 305-D 5 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 305-D 5 has a wider throat (6.30 mm / 0.2480 in vs 5.94 mm / 0.2339 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.