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Yamaha BL-60L vs Yamaha SL-YEO-GP

The Yamaha SL-YEO-GP has a wider cup diameter, the Yamaha SL-YEO-GP features a deeper cup, the Yamaha BL-60L has a larger throat opening.

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
    Yamaha BL-60L
    • Trombone
    Throat diameter8.10 mm / 0.3189 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-YEO-GP
      • Trombone
      Throat diameter8.00 mm / 0.3150 in
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Throat Diameter

      The Yamaha BL-60L has a wider throat (8.10 mm / 0.3189 in vs 8.00 mm / 0.3150 in). 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 Yamaha BL-60L details Yamaha SL-YEO-GP details Yamaha BL-60L equivalents Yamaha SL-YEO-GP equivalents

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      Compare Yamaha SL-YEO-GP with others

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