Which has a bigger cup — Bach 1½C or Monette Cornet AP1-1 S5?

Both mouthpieces have virtually identical cup diameters at 17.00 mm / 0.6693 in.

How does cup depth compare between Bach 1½C and Monette Cornet AP1-1 S5?

The Monette Cornet AP1-1 S5 has a deep cup while the Bach 1½C has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1½C vs Monette Cornet AP1-1 S5

Name: Monette Cornet AP1-1 S5
Brand: Monette

the Monette Cornet AP1-1 S5 features a deeper cup.

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 1½C

• Cornet

Backbore—

Mouthpiece B

Monette Cornet AP1-1 S5

• Cornet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

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.