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Marcinkiewicz 8H-S vs Yamaha SL-54L

The Yamaha SL-54L has a wider cup diameter, the Yamaha SL-54L features a deeper cup, the Yamaha SL-54L has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
    Marcinkiewicz 8H-S
    • Trombone
    Cup diameter26.06 mm / 1.0260 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-54L
      • Trombone
      Cup diameter26.15 mm / 1.0295 in
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Yamaha SL-54L has a cup diameter of 26.15 mm / 1.0295 in compared to 26.06 mm / 1.0260 in on the Marcinkiewicz 8H-S — a difference of 0.09 mm / 0.0035 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      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.

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