Which has a bigger cup — Bach 1D or Marcinkiewicz 305?

The Marcinkiewicz 305 has a cup diameter of 17.20 mm / 0.6772 in compared to 17.00 mm / 0.6693 in on the Bach 1D — a difference of 0.20 mm / 0.0079 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1D and Marcinkiewicz 305?

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

Bach 1D vs Marcinkiewicz 305

Name: Marcinkiewicz 305
Brand: Marcinkiewicz

The Marcinkiewicz 305 has a wider cup diameter, the Marcinkiewicz 305 has a larger throat opening.

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

Bach 1D

• Cornet

Material—

Mouthpiece B

Marcinkiewicz 305

• 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.