Which has a bigger cup — Bach 1½C or Monette Vintage BP2L S1?

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

How does cup depth compare between Bach 1½C and Monette Vintage BP2L S1?

The Bach 1½C has a medium cup while the Monette Vintage BP2L S1 has a very shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1½C vs Monette Vintage BP2L S1

Name: Monette Vintage BP2L S1
Brand: Monette

the Bach 1½C 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

• Trumpet

Backbore—

Mouthpiece B

Monette Vintage BP2L S1

• Trumpet

Backbore—

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.