Which has a bigger cup — Bach 2½C or Marcinkiewicz 3 / 5C?

The Marcinkiewicz 3 / 5C has a cup diameter of 17.20 mm / 0.6772 in compared to 16.40 mm / 0.6457 in on the Bach 2½C — a difference of 0.80 mm / 0.0315 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 2½C and Marcinkiewicz 3 / 5C?

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

Bach 2½C vs Marcinkiewicz 3 / 5C

Name: Marcinkiewicz 3 / 5C
Brand: Marcinkiewicz

The Marcinkiewicz 3 / 5C has a wider cup diameter, the Marcinkiewicz 3 / 5C has a larger throat opening.

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

Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.

Mouthpiece A

Bach 2½C

• Cornet

Finish—

Best suited for

🎵All-round versatile — balanced cup for general playing

Mouthpiece B

Marcinkiewicz 3 / 5C

• Cornet

Finish—

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.

Open in interactive tool + Add third mouthpiece Bach 2½C details Marcinkiewicz 3 / 5C details Bach 2½C equivalents Marcinkiewicz 3 / 5C equivalents

Bach 2½C vs Marcinkiewicz 3 / 5C

Playing Characteristics

What Do These Model Names Mean?

What Changes If You Switch?

Which is better?

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