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

The internal diameter of the cup, measured at the widest point inside the rim.

Mouthpiece A

Marcinkiewicz 301

• Cornet

Cup diameter17.20 mm / 0.6772 in

Mouthpiece B

Marcinkiewicz 303

• Cornet

Cup diameter17.20 mm / 0.6772 in

Cup Diameter

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

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.