Which has a bigger cup — Bach 1½C or Marcinkiewicz 1 / 5B?

The Marcinkiewicz 1 / 5B has a cup diameter of 17.35 mm / 0.6831 in compared to 17.00 mm / 0.6693 in on the Bach 1½C — a difference of 0.35 mm / 0.0138 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1½C and Marcinkiewicz 1 / 5B?

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

Bach 1½C vs Marcinkiewicz 1 / 5B

Name: Marcinkiewicz 1 / 5B
Brand: Marcinkiewicz

The Marcinkiewicz 1 / 5B has a wider cup diameter, the Marcinkiewicz 1 / 5B 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 1½C

• 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.