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Kelly 18 vs Kelly 24AW

The Kelly 18 has a wider cup diameter, the Kelly 18 features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
    Kelly 18
    • Tuba
    General
    BackboreM
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📋Industry-standard tuba
    vs
    Mouthpiece B
      Kelly 24AW
      • Tuba
      General
      BackboreXL
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📋Tuba / sousaphone

      Which is better?

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

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