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Bach 18D vs Curry 12S

The Curry 12S has a wider cup diameter, the Curry 12S 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
    Bach 18D
    • Trombone
    Backbore—
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Curry 12S
      • Trombone
      Backbore—
      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 Bach 18D details Curry 12S details Bach 18D equivalents Curry 12S equivalents

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