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Bach 4C vs Bach 8½BW

The Bach 4C 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
    Bach 4C
    • Baritone / Euphonium
    Backbore—
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Bach 8½BW
      • Baritone / Euphonium
      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 4C details Bach 8½BW details Bach 4C equivalents Bach 8½BW equivalents

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