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Conn Imp. Precision 4 vs Conn Precision 1

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 4
    • Trombone
    Orchestral
    Throat diameter—
    Best suited for
    📋Bass trombone / large bore tenor
    🎶Full rich deep tone
    vs
    Mouthpiece B
      Conn Precision 1
      • Trombone
      Orchestral
      Throat diameter—
      Best suited for
      📋Large bore trombones; symphony work
      🎶Good clear tone; large bore symphonic

      Which is better?

      Both mouthpieces are categorized as "Orchestral" — the physical dimensions above will determine which suits your embouchure and playing style better.

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