Which has a bigger cup — Bach 18 or Marcinkiewicz W1?

The Marcinkiewicz W1 has a cup diameter of 33.66 mm / 1.3252 in compared to 32.10 mm / 1.2638 in on the Bach 18 — a difference of 1.56 mm / 0.0614 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bach 18 and Marcinkiewicz W1?

The Bach 18 has a medium cup while the Marcinkiewicz W1 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Bach 18 vs Marcinkiewicz W1

Name: Marcinkiewicz W1
Brand: Marcinkiewicz

The Marcinkiewicz W1 has a wider cup diameter, the Bach 18 features a deeper cup, the Bach 18 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 18

• Tuba

Material—

Best suited for

📣High-volume projection — open throat for power

Mouthpiece B

Marcinkiewicz W1

• Tuba

Material—

Best suited for

📣High-volume projection — open throat for power

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 18 details Marcinkiewicz W1 details Bach 18 equivalents Marcinkiewicz W1 equivalents

Bach 18 vs Marcinkiewicz W1

Playing Characteristics

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What Changes If You Switch?

Which is better?

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