Schilke 45B vs Schilke 59

The Schilke 59 has a wider cup diameter, the Schilke 59 features a deeper cup, the Schilke 59 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
    Schilke 45B
    • Trombone
    Cup diameter24.30 mm / 0.9567 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 59
      • Trombone
      Cup diameter28.52 mm / 1.1228 in
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Schilke 59 has a cup diameter of 28.52 mm / 1.1228 in compared to 24.30 mm / 0.9567 in on the Schilke 45B — a difference of 4.22 mm / 0.1661 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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