Home › Trombone › Denis Wick 6BL vs Yamaha SL-45C2S

Denis Wick 6BL vs Yamaha SL-45C2S

The Denis Wick 6BL has a wider cup diameter, the Denis Wick 6BL has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Denis Wick 6BL
    • Trombone
    Cup diameter25.40 mm / 1.0000 in
    Cup depthMedium
    Rim width6.26 mm / 0.2465 in
    Throat diameter6.66 mm / 0.2622 in
    BackboreV-type
    Finish—
    Material—
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-45C2S
      • Trombone
      Cup diameter24.26 mm / 0.9551 in
      Cup depthMedium
      Rim width—
      Throat diameter5.85 mm / 0.2303 in
      BackboreSemi-narrow
      Finish—
      Material—
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Denis Wick 6BL has a cup diameter of 25.40 mm / 1.0000 in compared to 24.26 mm / 0.9551 in on the Yamaha SL-45C2S — a difference of 1.14 mm / 0.0449 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.

      Throat Diameter

      The Denis Wick 6BL has a wider throat (6.66 mm / 0.2622 in vs 5.85 mm / 0.2303 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 6BL details Yamaha SL-45C2S details Denis Wick 6BL equivalents Yamaha SL-45C2S equivalents

      Compare Denis Wick 6BL with others

      Compare Yamaha SL-45C2S with others

      Popular Trombone comparisons

      Denis Wick vs Yamaha

      Browse by specification