Bruno Tilz 306-3 D vs Marcinkiewicz 8H-S

The Bruno Tilz 306-3 D has a wider cup diameter, the Bruno Tilz 306-3 D features a deeper cup, the Bruno Tilz 306-3 D has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Bruno Tilz 306-3 D
    • Trombone
    Catalog
    Cup diameter28.50 mm / 1.1220 in
    Cup depthDeep
    Rim width
    Throat diameter7.60 mm / 0.2992 in
    Backbore
    Finish
    Material
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Marcinkiewicz 8H-S
      • Trombone
      Cup diameter26.06 mm / 1.0260 in
      Cup depthShallow
      Rim width
      Throat diameter6.76 mm / 0.2661 in
      Backbore
      Finish
      Material
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Bruno Tilz 306-3 D has a cup diameter of 28.50 mm / 1.1220 in compared to 26.06 mm / 1.0260 in on the Marcinkiewicz 8H-S — a difference of 2.44 mm / 0.0961 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      The Bruno Tilz 306-3 D has a deep cup while the Marcinkiewicz 8H-S has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Throat Diameter

      The Bruno Tilz 306-3 D has a wider throat (7.60 mm / 0.2992 in vs 6.76 mm / 0.2661 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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