Which has a bigger cup — Bruno Tilz 310-M 27 or Marcinkiewicz CH 18?

The Bruno Tilz 310-M 27 has a cup diameter of 33.00 mm / 1.2992 in compared to 32.77 mm / 1.2902 in on the Marcinkiewicz CH 18 — a difference of 0.23 mm / 0.0091 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Bruno Tilz 310-M 27 and Marcinkiewicz CH 18?

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

Bruno Tilz 310-M 27 vs Marcinkiewicz CH 18

Name: Marcinkiewicz CH 18
Brand: Marcinkiewicz

The Bruno Tilz 310-M 27 has a wider cup diameter.

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

The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.

Mouthpiece A

Bruno Tilz 310-M 27

• Tuba

Catalog

Throat diameter8.20 mm / 0.3228 in

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Mouthpiece B

Marcinkiewicz CH 18

• Tuba

Throat diameter8.20 mm / 0.3228 in

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📣High-volume projection — open throat for power

Throat Diameter

Throat diameters are essentially identical at 8.20 mm / 0.3228 in, so resistance feel will be comparable.

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 Bruno Tilz 310-M 27 details Marcinkiewicz CH 18 details Bruno Tilz 310-M 27 equivalents Marcinkiewicz CH 18 equivalents

Bruno Tilz 310-M 27 vs Marcinkiewicz CH 18

Throat Diameter

Playing Characteristics

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