Monette BP4 S3 vs Yamaha TR-16C4
The Yamaha TR-16C4 has a wider cup diameter, the Monette BP4 S3 has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Monette BP4 S3
• Trumpet
Cup diameter16.20 mm / 0.6378 in
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
Yamaha TR-16C4
• Trumpet
Cup diameter17.00 mm / 0.6693 in
Cup Diameter
The Yamaha TR-16C4 has a cup diameter of 17.00 mm / 0.6693 in compared to 16.20 mm / 0.6378 in on the Monette BP4 S3 — a difference of 0.80 mm / 0.0315 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.