Which has a bigger cup — Bach 3C or Monette Unity D4-7?

The Bach 3C has a cup diameter of 16.30 mm / 0.6417 in compared to 16.20 mm / 0.6378 in on the Monette Unity D4-7 — 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 3C and Monette Unity D4-7?

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

Bach 3C vs Monette Unity D4-7

Name: Monette Unity D4-7
Brand: Monette

The Bach 3C 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 3C

• Trumpet

Material—

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Monette Unity D4-7

• Trumpet

Material—

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.

Open in interactive tool + Add third mouthpiece Bach 3C details Monette Unity D4-7 details Bach 3C equivalents Monette Unity D4-7 equivalents

Bach 3C vs Monette Unity D4-7

Playing Characteristics

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Which is better?

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