Bach Mega Tone Bass 4G vs Denis Wick 6BS

The Bach Mega Tone Bass 4G has a wider cup diameter, the Bach Mega Tone Bass 4G features a deeper cup, the Bach Mega Tone Bass 4G has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Bach Mega Tone Bass 4G
    • Trombone
    Cup diameter26.00 mm
    Cup depthVery deep
    Rim width
    Throat diameter7.04 mm
    Backbore
    Finish
    Material
    Best suited for
    🎻Orchestral playing — large cup for full, dark tone
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Denis Wick 6BS
      • Trombone
      Cup diameter25.40 mm
      Cup depthMedium
      Rim width6.26 mm
      Throat diameter6.66 mm
      BackboreV-type
      Finish
      Material
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Bach Mega Tone Bass 4G has a cup diameter of 26.00 mm compared to 25.40 mm on the Denis Wick 6BS — a difference of +0.60 mm. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      The Bach Mega Tone Bass 4G has a very deep cup while the Denis Wick 6BS has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Throat Diameter

      The Bach Mega Tone Bass 4G has a wider throat (7.04 mm vs 6.66 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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