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Bach 8½A vs Conn Connstellation 7CN

The Conn Connstellation 7CN has a wider cup diameter, the Conn Connstellation 7CN features a deeper cup.

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 8½A
    • Cornet
    Backbore—
    vs
    Mouthpiece B
      Conn Connstellation 7CN
      • Cornet
      General
      Backbore—
      Best suited for
      📋Trumpet players seeking precise matched dimensions
      🎶Size 7 (16.42mm); larger cup; fuller lower register; Narrow rim; smaller inner radius; sharper bite.

      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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