Which has a bigger cup — Bach 1B or Bach 2C?

The Bach 1B has a cup diameter of 17.00 mm / 0.6693 in compared to 16.50 mm / 0.6496 in on the Bach 2C — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1B and Bach 2C?

The Bach 1B has a deep cup while the Bach 2C has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 1B vs Bach 2C

Name: Bach 2C
Brand: Bach

The Bach 1B has a wider cup diameter, the Bach 1B 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 1B

• Cornet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Bach 2C

• Cornet

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.