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Bach 1½C vs GR Technologies 66SZ

The Bach 1½C has a wider cup diameter, the Bach 1½C 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
    Bach 1½C
    • Trumpet
    Throat diameter3.66 mm / 0.1441 in
    vs
    Mouthpiece B
      GR Technologies 66SZ
      • Trumpet
      Throat diameter—

      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 1½C details GR Technologies 66SZ details Bach 1½C equivalents GR Technologies 66SZ equivalents

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