Denis Wick 6BY vs Schilke 51D

The Schilke 51D has a wider cup diameter, the Denis Wick 6BY has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
    Denis Wick 6BY
    • Baritone / Euphonium
    Throat diameter7.12 mm / 0.2803 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 51D
      • Baritone / Euphonium
      Throat diameter7.04 mm / 0.2772 in
      Best suited for
      📣High-volume projection — open throat for power

      Throat Diameter

      The Denis Wick 6BY has a wider throat (7.12 mm / 0.2803 in vs 7.04 mm / 0.2772 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.

      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 Denis Wick 6BY details Schilke 51D details Denis Wick 6BY equivalents Schilke 51D equivalents