Which has a bigger cup — Bach 1D or Monette Cornet D1-5D S1?

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

How does cup depth compare between Bach 1D and Monette Cornet D1-5D S1?

The Bach 1D has a shallow cup while the Monette Cornet D1-5D S1 has a very shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1D vs Monette Cornet D1-5D S1

Name: Monette Cornet D1-5D S1
Brand: Monette

the Bach 1D features a deeper cup.

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

The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Bach 1D

• Cornet

Rim width—

Mouthpiece B

Monette Cornet D1-5D S1

• Cornet

Rim width—

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.