Marcinkiewicz E8.7M. Gillette (Standard) vs Yamaha CR-14ES-GP
The Yamaha CR-14ES-GP has a wider cup diameter, the Yamaha CR-14ES-GP has a larger throat opening.
Cup Diameter
The Yamaha CR-14ES-GP has a cup diameter of 16.86 mm / 0.6638 in compared to 16.33 mm / 0.6429 in on the Marcinkiewicz E8.7M. Gillette (Standard) — a difference of 0.53 mm / 0.0209 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Yamaha CR-14ES-GP has a wider throat (3.98 mm / 0.1567 in vs 3.86 mm / 0.1520 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.
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