Bach 1¼G vs Bach 6½AL (large shank)

The Bach 1¼G has a wider cup diameter, the Bach 1¼G features a deeper cup, the Bach 1¼G has a larger throat opening.

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 1¼G
    • Trombone
    Material
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Bach 6½AL (large shank)
      • Trombone
      Material
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      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 1¼G details Bach 6½AL (large shank) details Bach 1¼G equivalents Bach 6½AL (large shank) equivalents