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Marcinkiewicz 8-S vs Yamaha SL-48DL

The Marcinkiewicz 8-S has a wider cup diameter, the Yamaha SL-48DL features a deeper cup.

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 8-S
    • Trombone
    Cup diameter25.93 mm / 1.0209 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-48DL
      • Trombone
      Cup diameter25.25 mm / 0.9941 in
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Marcinkiewicz 8-S has a cup diameter of 25.93 mm / 1.0209 in compared to 25.25 mm / 0.9941 in on the Yamaha SL-48DL — a difference of 0.68 mm / 0.0268 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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