Which has a bigger cup — Bach 10½C or Monette Unity E4?

The Monette Unity E4 has a cup diameter of 16.20 mm / 0.6378 in compared to 15.90 mm / 0.6260 in on the Bach 10½C — a difference of 0.30 mm / 0.0118 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 10½C and Monette Unity E4?

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

Bach 10½C vs Monette Unity E4

Name: Monette Unity E4
Brand: Monette

The Monette Unity E4 has a wider cup diameter.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Bach 10½C

• Trumpet

Backbore—

Mouthpiece B

Monette Unity E4

• Trumpet

Backbore—

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.