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Schilke 50C4 vs Schilke 52D

The Schilke 52D has a wider cup diameter, the Schilke 50C4 has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Schilke 50C4
    • Trombone
    Cup diameter25.40 mm / 1.0000 in
    Cup depthDeep
    Rim width—
    Throat diameter6.53 mm / 0.2571 in
    BackboreF .257"
    Finish—
    Material—
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 52D
      • Trombone
      Cup diameter25.78 mm / 1.0150 in
      Cup depthDeep
      Rim width—
      Throat diameter6.35 mm / 0.2500 in
      Backbore1/4.2500
      Finish—
      Material—
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Schilke 52D has a cup diameter of 25.78 mm / 1.0150 in compared to 25.40 mm / 1.0000 in on the Schilke 50C4 — a difference of 0.38 mm / 0.0150 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

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

      Throat Diameter

      The Schilke 50C4 has a wider throat (6.53 mm / 0.2571 in vs 6.35 mm / 0.2500 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.

      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 Schilke 50C4 details Schilke 52D details Schilke 50C4 equivalents Schilke 52D equivalents

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