Which has a bigger cup — Bach 1 or Marcinkiewicz CH E3.1?

The Bach 1 has a cup diameter of 17.50 mm / 0.6890 in compared to 17.12 mm / 0.6740 in on the Marcinkiewicz CH E3.1 — a difference of 0.38 mm / 0.0150 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1 and Marcinkiewicz CH E3.1?

Both mouthpieces share a very deep cup depth, so the sound character from depth alone will be very similar.

Bach 1 vs Marcinkiewicz CH E3.1

Name: Marcinkiewicz CH E3.1
Brand: Marcinkiewicz

The Bach 1 has a wider cup diameter, the Marcinkiewicz CH E3.1 has a larger throat opening.

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 1

• Cornet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Marcinkiewicz CH E3.1

• 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.

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Bach 1 vs Marcinkiewicz CH E3.1

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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