Which has a bigger cup — Kelly 5G or Marcinkiewicz 8H-S?

The Marcinkiewicz 8H-S has a cup diameter of 26.06 mm / 1.0260 in compared to 25.40 mm / 1.0000 in on the Kelly 5G — a difference of 0.66 mm / 0.0260 in. A wider cup generally produces a fuller, darker tone but requires more air support.

How does cup depth compare between Kelly 5G and Marcinkiewicz 8H-S?

The Kelly 5G has a — cup while the Marcinkiewicz 8H-S has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

Kelly 5G vs Marcinkiewicz 8H-S

Name: Marcinkiewicz 8H-S
Brand: Marcinkiewicz

The Marcinkiewicz 8H-S has a wider cup diameter, the Kelly 5G features a deeper cup.

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

Kelly 5G

• Trombone

Orchestral

Throat diameter—

Best suited for

🎻Orchestral playing — large cup for full, dark tone

📋Symphonic trombone

Mouthpiece B

Marcinkiewicz 8H-S

• Trombone

Throat diameter6.76 mm / 0.2661 in

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 Kelly 5G details Marcinkiewicz 8H-S details Kelly 5G equivalents Marcinkiewicz 8H-S equivalents

Kelly 5G vs Marcinkiewicz 8H-S

Playing Characteristics

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