Conn Precision 1 (Alto) vs Marcinkiewicz 307FL

the Conn Precision 1 (Alto) features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Conn Precision 1 (Alto)
    • Flugelhorn
    General
    Cup diameter
    Cup depth
    Rim width
    Throat diameter
    Backbore
    Finish
    MaterialSilver-plated brass
    Best suited for
    📋Alto horn
    🎶Deep cup; rich tone
    vs
    Mouthpiece B
      Marcinkiewicz 307FL
      • Flugelhorn
      Cup diameter17.20 mm / 0.6772 in
      Cup depthVery deep
      Rim width
      Throat diameter4.32 mm / 0.1701 in
      Backbore
      Finish
      Material
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Depth

      The Conn Precision 1 (Alto) has a — cup while the Marcinkiewicz 307FL has a very deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Material

      The Conn Precision 1 (Alto) is described as Silver-plated brass, and the Marcinkiewicz 307FL as unspecified. Material affects mass, warmth, and how quickly the piece responds.

      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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