Bach 1¼C vs GR Technologies 63S

The Bach 1¼C has a wider cup diameter, the Bach 1¼C features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
    Bach 1¼C
    • Trumpet
    Cup depthMedium
    vs
    Mouthpiece B
      GR Technologies 63S
      • Trumpet
      Cup depthShallow
      Best suited for
      🎺Lead / commercial — shallow cup for brightness and range

      Cup Depth

      The Bach 1¼C has a medium cup while the GR Technologies 63S has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      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 1¼C details GR Technologies 63S details Bach 1¼C equivalents GR Technologies 63S equivalents