Marcinkiewicz CH W1 vs Yamaha BB-67B4
The Marcinkiewicz CH W1 has a wider cup diameter, the Marcinkiewicz CH W1 features a deeper cup, the Marcinkiewicz CH W1 has a larger throat opening.
Cup Diameter
The Marcinkiewicz CH W1 has a cup diameter of 33.66 mm / 1.3252 in compared to 32.06 mm / 1.2622 in on the Yamaha BB-67B4 — a difference of 1.60 mm / 0.0630 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Marcinkiewicz CH W1 has a medium cup while the Yamaha BB-67B4 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Marcinkiewicz CH W1 has a wider throat (7.67 mm / 0.3020 in vs 7.02 mm / 0.2764 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.