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Giardinelli 3M vs Schilke 45B

The Giardinelli 3M has a wider cup diameter, the Giardinelli 3M 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
    Giardinelli 3M
    • Trombone
    Cup diameter26.30 mm / 1.0354 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 Giardinelli 3M has a cup diameter of 26.30 mm / 1.0354 in compared to 24.30 mm / 0.9567 in on the Schilke 45B — a difference of 2.00 mm / 0.0787 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 Giardinelli 3M details Schilke 45B details Giardinelli 3M equivalents Schilke 45B equivalents

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