Which has a bigger cup — Bach 10½C or Monette Vintage BP4 S3?

The Monette Vintage BP4 S3 has a cup diameter of 16.20 mm / 0.6378 in compared to 15.90 mm / 0.6260 in on the Bach 10½C — a difference of 0.30 mm / 0.0118 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 10½C and Monette Vintage BP4 S3?

Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.

Bach 10½C vs Monette Vintage BP4 S3

Name: Monette Vintage BP4 S3
Brand: Monette

The Monette Vintage BP4 S3 has a wider cup diameter.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.

Mouthpiece A

Bach 10½C

• Trumpet

Finish—

Mouthpiece B

Monette Vintage BP4 S3

• Trumpet

Finish—

Best suited for

🎵All-round versatile — balanced cup for general playing

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.