Which has a bigger cup — Bach 3E or Monette Cornet D4S S2?

The Bach 3E has a cup diameter of 16.30 mm / 0.6417 in compared to 16.20 mm / 0.6378 in on the Monette Cornet D4S S2 — a difference of 0.10 mm / 0.0039 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 3E and Monette Cornet D4S S2?

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

Bach 3E vs Monette Cornet D4S S2

Name: Monette Cornet D4S S2
Brand: Monette

The Bach 3E 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 3E

• Cornet

Rim width—

Mouthpiece B

Monette Cornet D4S S2

• Cornet

Rim width—

Best suited for

🎺Lead / commercial — shallow cup for brightness and range

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.