Conn Imp. Precision 3 vs Monette Cornet BP2 FL
The Monette Cornet BP2 FL has a wider cup diameter, the Monette Cornet BP2 FL features a deeper cup.
Cup Diameter
The Monette Cornet BP2 FL has a cup diameter of 17.00 mm / 0.6693 in compared to 16.41 mm / 0.6461 in on the Conn Imp. Precision 3 — a difference of 0.59 mm / 0.0232 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Monette Cornet BP2 FL has a deep cup while the Conn Imp. Precision 3 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Conn Imp. Precision 3 is described as Silver-plated brass, and the Monette Cornet BP2 FL as unspecified. Material affects mass, warmth, and how quickly the piece responds.
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.