Schilke 45B vs Schilke 51C4

The Schilke 51C4 has a wider cup diameter, the Schilke 45B features a deeper cup, the Schilke 51C4 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
    Schilke 45B
    • Trombone
    Material
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Schilke 51C4
      • Trombone
      Material
      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 Schilke 45B details Schilke 51C4 details Schilke 45B equivalents Schilke 51C4 equivalents