Which has a bigger cup — Marcinkiewicz 301 or Marcinkiewicz 303?

Both mouthpieces have virtually identical cup diameters at 17.20 mm / 0.6772 in.

How does cup depth compare between Marcinkiewicz 301 and Marcinkiewicz 303?

The Marcinkiewicz 303 has a shallow cup while the Marcinkiewicz 301 has a very shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Marcinkiewicz 301 vs Marcinkiewicz 303

Name: Marcinkiewicz 303
Brand: Marcinkiewicz

the Marcinkiewicz 303 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material

Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.

Mouthpiece A

Marcinkiewicz 301

• Cornet

Material—

Mouthpiece B

Marcinkiewicz 303

• Cornet

Material—

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.