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Conn Precision 1 vs Conn Precision 3A

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
    Conn Precision 1
    • Trombone
    Orchestral
    Throat diameter—
    Best suited for
    📋Large bore trombones; symphony work
    🎶Good clear tone; large bore symphonic
    vs
    Mouthpiece B
      Conn Precision 3A
      • Trombone
      General
      Throat diameter—
      Best suited for
      📋General trombone use
      🎶Good round tone in all registers; all-around

      Which is better?

      The Conn Precision 1 is designed for orchestral playing, while the Conn Precision 3A targets general use. Your best choice depends on your musical context.

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