Bach 5B vs Monette Unity E4-7
The Bach 5B has a wider cup diameter, the Bach 5B features a deeper cup.
Mouthpiece A
Bach 5B
• Trumpet
Cup diameter16.25 mm
Cup depthDeep
Rim width—
Throat diameter3.66 mm
Backbore—
Finish—
Material—
vs
Mouthpiece B
Monette Unity E4-7
• Trumpet
Cup diameter16.20 mm
Cup depthMedium
Rim width—
Throat diameter3.66 mm
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
Cup Diameter
The Bach 5B has a cup diameter of 16.25 mm compared to 16.20 mm on the Monette Unity E4-7 — a difference of +0.05 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 5B has a deep cup while the Monette Unity E4-7 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
Throat diameters are essentially identical at 3.66 mm, so resistance feel will be comparable.
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.