Denis Wick 4B vs Kelly 6V

The Denis Wick 4B has a wider cup diameter, the Kelly 6V features a deeper cup, the Denis Wick 4B has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Base metal or construction (e.g. brass, stainless steel, plastic). Influences weight, response, and tone color.
Mouthpiece A
    Denis Wick 4B
    • Cornet
    Material
    Best suited for
    🎵All-round versatile — balanced cup for general playing
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Kelly 6V
      • Cornet
      Dark/Deep
      MaterialLexan polycarbonate
      Best suited for
      📣High-volume projection — open throat for power
      📋Deep V-cup to fill out cornet sound

      Material

      The Denis Wick 4B is described as unspecified, and the Kelly 6V as Lexan polycarbonate. Material affects mass, warmth, and how quickly the piece responds.

      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 4B details Kelly 6V details Denis Wick 4B equivalents Kelly 6V equivalents