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Bach 6BM vs Bach 8½A

The Bach 6BM has a wider cup diameter, the Bach 8½A features a deeper cup, the Bach 6BM has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
    Bach 6BM
    • Cornet
    Backbore—
    vs
    Mouthpiece B
      Bach 8½A
      • Cornet
      Backbore—

      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 6BM details Bach 8½A details Bach 6BM equivalents Bach 8½A equivalents

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