Which has a bigger cup — Marcinkiewicz 2 / 7B or Yamaha CR-17C4L?

The Yamaha CR-17C4L has a cup diameter of 17.30 mm / 0.6811 in compared to 17.27 mm / 0.6799 in on the Marcinkiewicz 2 / 7B — a difference of 0.03 mm / 0.0012 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Marcinkiewicz 2 / 7B and Yamaha CR-17C4L?

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

Marcinkiewicz 2 / 7B vs Yamaha CR-17C4L

Name: Yamaha CR-17C4L
Brand: Yamaha

The Yamaha CR-17C4L has a wider cup diameter, the Marcinkiewicz 2 / 7B 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

Marcinkiewicz 2 / 7B

• Cornet

Backbore—

Mouthpiece B

Yamaha CR-17C4L

• Cornet

BackboreStandard

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.