Denis Wick 4BS vs Giardinelli 1GM

The Giardinelli 1GM has a wider cup diameter, the Giardinelli 1GM features a deeper cup, the Denis Wick 4BS has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Denis Wick 4BS
    • Trombone
    Cup diameter25.90 mm / 1.0197 in
    Cup depthMedium
    Rim width6.77 mm / 0.2665 in
    Throat diameter7.13 mm / 0.2807 in
    Backboremedium
    Finish
    Material
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Giardinelli 1GM
      • Trombone
      Cup diameter27.00 mm / 1.0630 in
      Cup depthDeep
      Rim width
      Throat diameter6.75 mm / 0.2657 in
      Backbore17/64 (.265)"
      Finish
      Material
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone
      📣High-volume projection — open throat for power

      Cup Diameter

      The Giardinelli 1GM has a cup diameter of 27.00 mm / 1.0630 in compared to 25.90 mm / 1.0197 in on the Denis Wick 4BS — a difference of 1.10 mm / 0.0433 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      The Giardinelli 1GM has a deep cup while the Denis Wick 4BS has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Throat Diameter

      The Denis Wick 4BS has a wider throat (7.13 mm / 0.2807 in vs 6.75 mm / 0.2657 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.

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