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 width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.

Mouthpiece A

Marcinkiewicz 2 / 7B

• Cornet

Rim width—

Mouthpiece B

Yamaha CR-17C4L

• Cornet

Rim width—

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.