Home › Trumpet › GR Technologies G66*** vs GR Technologies G66**

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
Mouthpiece A
    GR Technologies G66***
    • Trumpet
    Cup diameter16.76 mm / 0.6598 in
    Cup depthMedium
    Rim width—
    Throat diameter—
    Backbore—
    Finish—
    Material—
    vs
    Mouthpiece B
      GR Technologies G66**
      • Trumpet
      Cup diameter16.76 mm / 0.6598 in
      Cup depthMedium
      Rim width—
      Throat diameter—
      Backbore—
      Finish—
      Material—

      Cup Diameter

      Both mouthpieces have virtually identical cup diameters at 16.76 mm / 0.6598 in.

      Cup Depth

      Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.

      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

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      Compare GR Technologies G66** with others

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