Bach 4C vs Denis Wick SM4

The Denis Wick SM4 has a wider cup diameter, the Denis Wick SM4 features a deeper cup, the Denis Wick SM4 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 4C
    • Baritone / Euphonium
    Backbore
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Denis Wick SM4
      • Baritone / Euphonium
      Backborebarrel
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣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 Denis Wick SM4 details Bach 4C equivalents Denis Wick SM4 equivalents