Which has a bigger cup — Bach Mega Tone Cornet 1C or Marcinkiewicz 309?

The Marcinkiewicz 309 has a cup diameter of 17.20 mm / 0.6772 in compared to 17.00 mm / 0.6693 in on the Bach Mega Tone Cornet 1C — a difference of 0.20 mm / 0.0079 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach Mega Tone Cornet 1C and Marcinkiewicz 309?

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

Bach Mega Tone Cornet 1C vs Marcinkiewicz 309

Name: Marcinkiewicz 309
Brand: Marcinkiewicz

The Marcinkiewicz 309 has a wider cup diameter.

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 Mega Tone Cornet 1C

• Cornet

Backbore—

Mouthpiece B

Marcinkiewicz 309

• Cornet

Backbore—

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.