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Bruno Tilz 305-4 vs Denis Wick 5AL

The Denis Wick 5AL has a wider cup diameter, the Denis Wick 5AL has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Bruno Tilz 305-4
    • Trombone
    Catalog
    Cup diameter25.50 mm
    Cup depthMedium
    Rim width—
    Throat diameter5.80 mm
    Backbore—
    Finish—
    Material—
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Denis Wick 5AL
      • Trombone
      Cup diameter25.73 mm
      Cup depthMedium
      Rim width6.64 mm
      Throat diameter7.30 mm
      Backborebarrel
      Finish—
      Material—
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Denis Wick 5AL has a cup diameter of 25.73 mm compared to 25.50 mm on the Bruno Tilz 305-4 — a difference of +0.23 mm. 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 5AL has a wider throat (7.30 mm vs 5.80 mm). 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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