Which has a bigger cup — Kelly 7C or Monette Cornet E2.5 S3?

The Kelly 7C has a cup diameter of 16.51 mm / 0.6500 in compared to 16.40 mm / 0.6457 in on the Monette Cornet E2.5 S3 — a difference of 0.11 mm / 0.0043 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Kelly 7C and Monette Cornet E2.5 S3?

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

Kelly 7C vs Monette Cornet E2.5 S3

Name: Monette Cornet E2.5 S3
Brand: Monette

The Kelly 7C 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

Kelly 7C

• Cornet

General

MaterialLexan polycarbonate

Best suited for

🎵All-round versatile — balanced cup for general playing

📋Beginner / intermediate

Mouthpiece B

Monette Cornet E2.5 S3

• Cornet

Material—

Best suited for

🎵All-round versatile — balanced cup for general playing

Material

The Kelly 7C is described as Lexan polycarbonate, and the Monette Cornet E2.5 S3 as unspecified. Material affects mass, warmth, and how quickly the piece responds.

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.

Open in interactive tool + Add third mouthpiece Kelly 7C details Monette Cornet E2.5 S3 details Kelly 7C equivalents Monette Cornet E2.5 S3 equivalents

Kelly 7C vs Monette Cornet E2.5 S3

Material

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

Compare Kelly 7C with others

Compare Monette Cornet E2.5 S3 with others

Popular Cornet comparisons

Kelly vs Monette

Browse by specification