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Curry 12C vs Schilke 51D

The Schilke 51D has a wider cup diameter, the Schilke 51D has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Curry 12C
    • Trombone
    Cup diameter24.23 mm / 0.9540 in
    Cup depthMedium
    Rim width—
    Throat diameter5.92 mm / 0.2330 in
    Backbore—
    Finish—
    Material—
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 51D
      • Trombone
      Cup diameter25.55 mm / 1.0059 in
      Cup depthMedium
      Rim width—
      Throat diameter7.04 mm / 0.2772 in
      BackboreJ .277"
      Finish—
      Material—
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Schilke 51D has a cup diameter of 25.55 mm / 1.0059 in compared to 24.23 mm / 0.9540 in on the Curry 12C — a difference of 1.32 mm / 0.0519 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

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

      Throat Diameter

      The Schilke 51D has a wider throat (7.04 mm / 0.2772 in vs 5.92 mm / 0.2330 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.

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