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Bach 22 vs Schilke 45B

The Schilke 45B has a wider cup diameter, the Schilke 45B 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
    Bach 22
    • Trombone
    Cup diameter23.92 mm / 0.9417 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 45B
      • Trombone
      Cup diameter24.30 mm / 0.9567 in
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Schilke 45B has a cup diameter of 24.30 mm / 0.9567 in compared to 23.92 mm / 0.9417 in on the Bach 22 — a difference of 0.38 mm / 0.0150 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.

      Open in interactive tool + Add third mouthpiece Bach 22 details Schilke 45B details Bach 22 equivalents Schilke 45B equivalents

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