Which has a bigger cup — Bach 1 or Marcinkiewicz 315?

The Bach 1 has a cup diameter of 17.50 mm / 0.6890 in compared to 17.20 mm / 0.6772 in on the Marcinkiewicz 315 — a difference of 0.30 mm / 0.0118 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 1 and Marcinkiewicz 315?

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

Bach 1 vs Marcinkiewicz 315

Name: Marcinkiewicz 315
Brand: Marcinkiewicz

The Bach 1 has a wider cup diameter, the Marcinkiewicz 315 has a larger throat opening.

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

The taper behind the throat leading to the shank. Affects projection and tone character.

Mouthpiece A

Bach 1

• Cornet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

Mouthpiece B

Marcinkiewicz 315

• Cornet

Backbore—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

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.

Open in interactive tool + Add third mouthpiece Bach 1 details Marcinkiewicz 315 details Bach 1 equivalents Marcinkiewicz 315 equivalents

Bach 1 vs Marcinkiewicz 315

Playing Characteristics

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What Changes If You Switch?

Which is better?

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