Conn Imp. Precision 3 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 narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
    Conn Imp. Precision 3
    • Trombone
    General
    Throat diameter
    Best suited for
    📋Large lips; all band work
    🎶Full round tone
    vs
    Mouthpiece B
      Conn Imp. Precision 4
      • Trombone
      Orchestral
      Throat diameter
      Best suited for
      📋Bass trombone / large bore tenor
      🎶Full rich deep tone

      Which is better?

      The Conn Imp. Precision 3 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 3 details Conn Imp. Precision 4 details Conn Imp. Precision 3 equivalents Conn Imp. Precision 4 equivalents