Which has a bigger cup — Marcinkiewicz 309 or Marcinkiewicz 1 / 5B?

The Marcinkiewicz 1 / 5B has a cup diameter of 17.35 mm / 0.6831 in compared to 17.20 mm / 0.6772 in on the Marcinkiewicz 309 — a difference of 0.15 mm / 0.0059 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Marcinkiewicz 309 and Marcinkiewicz 1 / 5B?

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

Marcinkiewicz 309 vs Marcinkiewicz 1 / 5B

Name: Marcinkiewicz 1 / 5B
Brand: Marcinkiewicz

The Marcinkiewicz 1 / 5B has a wider cup diameter.

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

Marcinkiewicz 309

• Cornet

Finish—

Mouthpiece B

Marcinkiewicz 1 / 5B

• 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.