Marcinkiewicz 8H-S vs Yamaha SL-YEO-GP
The Yamaha SL-YEO-GP has a wider cup diameter, the Yamaha SL-YEO-GP features a deeper cup, the Yamaha SL-YEO-GP has a larger throat opening.
Cup Diameter
The Yamaha SL-YEO-GP has a cup diameter of 28.72 mm / 1.1307 in compared to 26.06 mm / 1.0260 in on the Marcinkiewicz 8H-S — a difference of 2.66 mm / 0.1047 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Yamaha SL-YEO-GP has a deep cup while the Marcinkiewicz 8H-S has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Yamaha SL-YEO-GP has a wider throat (8.00 mm / 0.3150 in vs 6.76 mm / 0.2661 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.
Compare Marcinkiewicz 8H-S with others
Compare Yamaha SL-YEO-GP with others
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