Denis Wick 4AY vs Schilke 51D

The Denis Wick 4AY has a wider cup diameter, the Denis Wick 4AY features a deeper cup, the Denis Wick 4AY has a larger throat opening.

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
    Denis Wick 4AY
    • Baritone / Euphonium
    Backboremedium
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 51D
      • Baritone / Euphonium
      BackboreJ .277"
      Best suited for
      📣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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