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Schilke 52E2 vs Yamaha SL-YEO-S

The Yamaha SL-YEO-S has a wider cup diameter, the Schilke 52E2 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Schilke 52E2
    • Trombone
    Cup diameter25.91 mm / 1.0201 in
    Cup depthVery deep
    Rim width—
    Throat diameter—
    BackboreJ.277
    Finish—
    Material—
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    vs
    Mouthpiece B
      Yamaha SL-YEO-S
      • Trombone
      Cup diameter28.72 mm / 1.1307 in
      Cup depthDeep
      Rim width—
      Throat diameter8.00 mm / 0.3150 in
      BackboreSemi-wide
      Finish—
      Material—
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Yamaha SL-YEO-S has a cup diameter of 28.72 mm / 1.1307 in compared to 25.91 mm / 1.0201 in on the Schilke 52E2 — a difference of 2.81 mm / 0.1106 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      The Schilke 52E2 has a very deep cup while the Yamaha SL-YEO-S has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      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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