Which has a bigger cup — Bach 9B or Monette Cornet E4 FL?

The Monette Cornet E4 FL has a cup diameter of 16.20 mm / 0.6378 in compared to 16.05 mm / 0.6319 in on the Bach 9B — a difference of 0.15 mm / 0.0059 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 9B and Monette Cornet E4 FL?

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

Bach 9B vs Monette Cornet E4 FL

Name: Monette Cornet E4 FL
Brand: Monette

The Monette Cornet E4 FL has a wider cup diameter.

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

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Bach 9B

• Cornet

Material—

Mouthpiece B

Monette Cornet E4 FL

• Cornet

Material—

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.