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Bach 3C vs GR Technologies 64.7S

The GR Technologies 64.7S has a wider cup diameter, the Bach 3C features a deeper cup.

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
    Bach 3C
    • Trumpet
    Material—
    Best suited for
    🎵All-round versatile — balanced cup for general playing
    vs
    Mouthpiece B
      GR Technologies 64.7S
      • 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 Bach 3C details GR Technologies 64.7S details Bach 3C equivalents GR Technologies 64.7S equivalents

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