Schilke 45 vs Schilke 46

The Schilke 46 has a wider cup diameter.

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 45
    • Trombone
    Cup diameter24.38 mm / 0.9598 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 46
      • Trombone
      Cup diameter24.54 mm / 0.9661 in
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Schilke 46 has a cup diameter of 24.54 mm / 0.9661 in compared to 24.38 mm / 0.9598 in on the Schilke 45 — a difference of 0.16 mm / 0.0063 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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