Denis Wick 5AL vs Yamaha SL-YEO-S

The Yamaha SL-YEO-S has a wider cup diameter, the Yamaha SL-YEO-S features a deeper cup, the Yamaha SL-YEO-S has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Denis Wick 5AL
    • Trombone
    Cup diameter25.73 mm
    Cup depthMedium
    Rim width6.64 mm
    Throat diameter7.30 mm
    Backborebarrel
    Finish
    Material
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-YEO-S
      • Trombone
      Cup diameter28.72 mm
      Cup depthDeep
      Rim width
      Throat diameter8.00 mm
      BackboreSemi-wide
      Finish
      Material
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Yamaha SL-YEO-S has a cup diameter of 28.72 mm compared to 25.73 mm on the Denis Wick 5AL — a difference of +2.99 mm. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      The Yamaha SL-YEO-S has a deep cup while the Denis Wick 5AL has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Throat Diameter

      The Yamaha SL-YEO-S has a wider throat (8.00 mm vs 7.30 mm). A wider throat allows more air through, increasing volume and projection but reducing resistance.

      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.

      Open in interactive tool + Add third mouthpiece Denis Wick 5AL details Yamaha SL-YEO-S details Denis Wick 5AL equivalents Yamaha SL-YEO-S equivalents