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Bach 8½A vs Yamaha CR-11A4L

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

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 8½A
    • Cornet
    Throat diameter3.66 mm / 0.1441 in
    vs
    Mouthpiece B
      Yamaha CR-11A4L
      • Cornet
      Throat diameter3.65 mm / 0.1437 in
      Best suited for
      🎺Lead / commercial — shallow cup for brightness and range

      Throat Diameter

      The Bach 8½A has a wider throat (3.66 mm / 0.1441 in vs 3.65 mm / 0.1437 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.

      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 8½A details Yamaha CR-11A4L details Bach 8½A equivalents Yamaha CR-11A4L equivalents

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