Conn Precision 2 vs Schilke 66

the Conn Precision 2 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Conn Precision 2
    • Tuba
    General
    Cup diameter
    Cup depth
    Rim width
    Throat diameter
    Backbore
    Finish
    MaterialSilver-plated brass
    Best suited for
    📋BBb bass; general use
    🎶Full rich tone in all registers
    vs
    Mouthpiece B
      Schilke 66
      • Tuba
      Cup diameter31.52 mm / 1.2409 in
      Cup depthMedium
      Rim width
      Throat diameter8.33 mm / 0.3280 in
      Backbore21/64.3281"
      Finish
      Material
      Best suited for
      📣High-volume projection — open throat for power

      Cup Depth

      The Conn Precision 2 has a — cup while the Schilke 66 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Material

      The Conn Precision 2 is described as Silver-plated brass, and the Schilke 66 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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