Giardinelli S15 vs Yamaha HR-35C4

The Yamaha HR-35C4 has a wider cup diameter, the Giardinelli S15 features a deeper cup, the Giardinelli S15 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
    Giardinelli S15
    • French Horn
    Backbore.180"
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha HR-35C4
      • French Horn
      BackboreStandard
      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.

      Open in interactive tool + Add third mouthpiece Giardinelli S15 details Yamaha HR-35C4 details Giardinelli S15 equivalents Yamaha HR-35C4 equivalents