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Bach 8½A vs Conn Precision 1

The Conn Precision 1 has a wider cup diameter, the Conn Precision 1 features a deeper cup.

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
      Conn Precision 1
      • Cornet
      General
      Throat diameter—
      Best suited for
      📋All-around players; comfortable wide rim
      🎶Full round tone; suited to low notes

      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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