Bach 5V vs Monette Cornet E4L rim
The Bach 5V has a wider cup diameter, the Bach 5V features a deeper cup, the Bach 5V has a larger throat opening.
Cup Diameter
The Bach 5V has a cup diameter of 16.25 mm compared to 16.20 mm on the Monette Cornet E4L rim — a difference of +0.05 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 5V has a very deep cup while the Monette Cornet E4L rim has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach 5V has a wider throat (4.09 mm vs 3.66 mm). 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.