Marcinkiewicz EBT3E. Tack vs Yamaha SL-48S-GP

The Marcinkiewicz EBT3E. Tack has a wider cup diameter, the Marcinkiewicz EBT3E. Tack has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Marcinkiewicz EBT3E. Tack
    • Trombone
    Cup diameter28.35 mm / 1.1161 in
    Cup depthMedium
    Rim width
    Throat diameter7.14 mm / 0.2811 in
    Backbore
    Finish
    Material
    Best suited for
    📣High-volume projection — open throat for power
    vs
    Mouthpiece B
      Yamaha SL-48S-GP
      • Trombone
      Cup diameter25.25 mm / 0.9941 in
      Cup depthMedium
      Rim width
      Throat diameter6.62 mm / 0.2606 in
      BackboreSemi-wide
      Finish
      Material
      Best suited for
      📣High-volume projection — open throat for power

      Cup Diameter

      The Marcinkiewicz EBT3E. Tack has a cup diameter of 28.35 mm / 1.1161 in compared to 25.25 mm / 0.9941 in on the Yamaha SL-48S-GP — a difference of 3.10 mm / 0.1220 in. 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 Marcinkiewicz EBT3E. Tack has a wider throat (7.14 mm / 0.2811 in vs 6.62 mm / 0.2606 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 EBT3E. Tack details Yamaha SL-48S-GP details Marcinkiewicz EBT3E. Tack equivalents Yamaha SL-48S-GP equivalents