Which has a bigger cup — Bach 1½B or Monette Cornet C4LVS?

The Bach 1½B has a cup diameter of 17.00 mm / 0.6693 in compared to 16.20 mm / 0.6378 in on the Monette Cornet C4LVS — a difference of 0.80 mm / 0.0315 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1½B and Monette Cornet C4LVS?

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

Bach 1½B vs Monette Cornet C4LVS

Name: Monette Cornet C4LVS
Brand: Monette

The Bach 1½B has a wider cup diameter.

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

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Bach 1½B

• Cornet

Rim width—

Mouthpiece B

Monette Cornet C4LVS

• Cornet

Rim width—

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.