Monette Cornet B1-1 FL vs Yamaha CR-14ES
The Monette Cornet B1-1 FL has a wider cup diameter, the Yamaha CR-14ES features a deeper cup, the Yamaha CR-14ES has a larger throat opening.
Cup Diameter
The Monette Cornet B1-1 FL has a cup diameter of 17.00 mm / 0.6693 in compared to 16.86 mm / 0.6638 in on the Yamaha CR-14ES — a difference of 0.14 mm / 0.0055 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Yamaha CR-14ES has a very deep cup while the Monette Cornet B1-1 FL has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Yamaha CR-14ES has a wider throat (3.98 mm / 0.1567 in vs 3.66 mm / 0.1441 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.