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Conn Imp. Precision 5 vs Yamaha CR-14ES-GP

the Yamaha CR-14ES-GP 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 5
    • Cornet
    Lead
    Throat diameter—
    Best suited for
    📋Dance band / lead; standard on Conn 6B Victor
    🎶Bright tone; excellent in high register
    vs
    Mouthpiece B
      Yamaha CR-14ES-GP
      • Cornet
      Throat diameter3.98 mm / 0.1567 in
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      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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