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Conn Imp. Precision 3A vs Conn Imp. Precision 4

the Conn Imp. Precision 4 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
    Conn Imp. Precision 3A
    • Trombone
    General
    Cup diameter—
    Best suited for
    📋General trombone
    🎶Good round tone all-around
    vs
    Mouthpiece B
      Conn Imp. Precision 4
      • Trombone
      Orchestral
      Cup diameter—
      Best suited for
      📋Bass trombone / large bore tenor
      🎶Full rich deep tone

      Which is better?

      The Conn Imp. Precision 3A is designed for general playing, while the Conn Imp. Precision 4 targets orchestral use. Your best choice depends on your musical context.

      Open in interactive tool + Add third mouthpiece Conn Imp. Precision 3A details Conn Imp. Precision 4 details Conn Imp. Precision 3A equivalents Conn Imp. Precision 4 equivalents

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