Which has a bigger cup — Marcinkiewicz 306 or Marcinkiewicz 307?

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

How does cup depth compare between Marcinkiewicz 306 and Marcinkiewicz 307?

The Marcinkiewicz 307 has a medium cup while the Marcinkiewicz 306 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Marcinkiewicz 306 vs Marcinkiewicz 307

Name: Marcinkiewicz 307
Brand: Marcinkiewicz

the Marcinkiewicz 307 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 306

• Cornet

Material—

Mouthpiece B

Marcinkiewicz 307

• 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.