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GR Technologies G66*** vs GR Technologies G66**

Both mouthpieces share similar core dimensions — the differences are in the details.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
    GR Technologies G66***
    • Trumpet
    Material—
    vs
    Mouthpiece B
      GR Technologies G66**
      • Trumpet
      Material—

      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 G66*** details GR Technologies G66** details GR Technologies G66*** equivalents GR Technologies G66** equivalents

      Compare GR Technologies G66*** with others

      Compare GR Technologies G66** with others

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