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Kelly 24AW-SS vs Kelly 25

The Kelly 24AW-SS has a wider cup diameter, the Kelly 24AW-SS features a deeper cup.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
    Kelly 24AW-SS
    • Tuba
    General
    Cup depthVery deep
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📋Tuba / sousaphone
    vs
    Mouthpiece B
      Kelly 25
      • Tuba
      General
      Cup depthMedium
      Best suited for
      📋General tuba / euphonium doubler

      Cup Depth

      The Kelly 24AW-SS has a very deep cup while the Kelly 25 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      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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