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GR Technologies 67MX vs Schilke 13A4a

The GR Technologies 67MX has a wider cup diameter, the GR Technologies 67MX features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
    GR Technologies 67MX
    • Trumpet
    Throat diameter—
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    vs
    Mouthpiece B
      Schilke 13A4a
      • Trumpet
      Throat diameter3.66 mm / 0.1441 in

      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 GR Technologies 67MX details Schilke 13A4a details GR Technologies 67MX equivalents Schilke 13A4a equivalents

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