Home › Trombone › Marcinkiewicz ET1B. PeeblesBass Shank Only vs Marcinkiewicz 9BB. Stroup

Marcinkiewicz ET1B. PeeblesBass Shank Only vs Marcinkiewicz 9BB. Stroup

The Marcinkiewicz ET1B. PeeblesBass Shank Only has a wider cup diameter, the Marcinkiewicz ET1B. PeeblesBass Shank Only has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
The narrowest point at the bottom of the cup. Affects resistance, volume, and tone color.
Mouthpiece A
    Marcinkiewicz ET1B. PeeblesBass Shank Only
    • Trombone
    Throat diameter6.76 mm / 0.2661 in
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Marcinkiewicz 9BB. Stroup
      • Trombone
      Throat diameter6.35 mm / 0.2500 in
      Best suited for
      📣High-volume projection — open throat for power

      Throat Diameter

      The Marcinkiewicz ET1B. PeeblesBass Shank Only has a wider throat (6.76 mm / 0.2661 in vs 6.35 mm / 0.2500 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.

      Open in interactive tool + Add third mouthpiece Marcinkiewicz ET1B. PeeblesBass Shank Only details Marcinkiewicz 9BB. Stroup details Marcinkiewicz ET1B. PeeblesBass Shank Only equivalents Marcinkiewicz 9BB. Stroup equivalents

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