Which has a bigger cup — Bach 11EW or Bach 1B?

The Bach 1B has a cup diameter of 17.00 mm / 0.6693 in compared to 15.70 mm / 0.6181 in on the Bach 11EW — a difference of 1.30 mm / 0.0512 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 11EW and Bach 1B?

The Bach 1B has a deep cup while the Bach 11EW has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 11EW vs Bach 1B

Name: Bach 1B
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

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Bach 11EW

• Cornet

Material—

Best suited for

🎺Lead / commercial — shallow cup for brightness and range

Mouthpiece B

Bach 1B

• Cornet

Material—

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.