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Bach 8½A vs Marcinkiewicz 307

The Marcinkiewicz 307 has a wider cup diameter, the Bach 8½A features a deeper cup, the Marcinkiewicz 307 has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
    Bach 8½A
    • Cornet
    Rim width—
    vs
    Mouthpiece B
      Marcinkiewicz 307
      • Cornet
      Rim width—

      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.

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