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Yamaha HR-31B vs Yamaha HR-34B

The Yamaha HR-34B has a wider cup diameter.

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
    Yamaha HR-31B
    • French Horn
    BackboreSemi-wide
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha HR-34B
      • French Horn
      BackboreSemi-wide
      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 Yamaha HR-31B details Yamaha HR-34B details Yamaha HR-31B equivalents Yamaha HR-34B equivalents

      Compare Yamaha HR-31B with others

      Compare Yamaha HR-34B with others

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