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Giardinelli 1GM vs Giardinelli 2GM

The Giardinelli 1GM has a wider cup diameter.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    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
    vs
    Mouthpiece B
      Giardinelli 2GM
      • Trombone
      Cup diameter26.50 mm / 1.0433 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 26.50 mm / 1.0433 in on the Giardinelli 2GM — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

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

      Throat Diameter

      Throat diameters are essentially identical at 6.75 mm / 0.2657 in, so resistance feel will be comparable.

      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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