Marcinkiewicz 17 vs Yamaha HR-32D4
The Yamaha HR-32D4 has a wider cup diameter, the Marcinkiewicz 17 features a deeper cup, the Yamaha HR-32D4 has a larger throat opening.
Cup Diameter
The Yamaha HR-32D4 has a cup diameter of 17.48 mm / 0.6882 in compared to 17.42 mm / 0.6858 in on the Marcinkiewicz 17 — a difference of 0.06 mm / 0.0024 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Marcinkiewicz 17 has a very deep cup while the Yamaha HR-32D4 has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Yamaha HR-32D4 has a wider throat (4.50 mm / 0.1772 in vs 4.39 mm / 0.1728 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.