Monette D2.5 FL vs Monette Unity D7-7
The Monette D2.5 FL has a wider cup diameter, the Monette D2.5 FL features a deeper cup.
Cup Diameter
The Monette D2.5 FL has a cup diameter of 16.40 mm / 0.6457 in compared to 16.20 mm / 0.6378 in on the Monette Unity D7-7 — a difference of 0.20 mm / 0.0079 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Monette D2.5 FL has a deep cup while the Monette Unity D7-7 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 / 0.1441 in, 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.