Bach 2½C vs Marcinkiewicz 1 1/4C (Endorsee)

The Marcinkiewicz 1 1/4C (Endorsee) has a wider cup diameter, the Marcinkiewicz 1 1/4C (Endorsee) features a deeper cup, the Marcinkiewicz 1 1/4C (Endorsee) has a larger throat opening.

Overall Comparison Cup Diameter Cup Depth Rim Width Throat Diameter Backbore Finish Material
Mouthpiece A
    Bach 2½C
    • Cornet
    Cup diameter16.40 mm / 0.6457 in
    Cup depthMedium
    Rim width
    Throat diameter3.66 mm / 0.1441 in
    Backbore
    Finish
    Material
    Best suited for
    🎵All-round versatile — balanced cup for general playing
    vs
    Mouthpiece B
      Marcinkiewicz 1 1/4C (Endorsee)
      • Cornet
      Cup diameter17.45 mm / 0.6870 in
      Cup depthDeep
      Rim width
      Throat diameter3.73 mm / 0.1469 in
      Backbore
      Finish
      Material
      Best suited for
      🎻Orchestral playing — large cup for full, dark tone

      Cup Diameter

      The Marcinkiewicz 1 1/4C (Endorsee) has a cup diameter of 17.45 mm / 0.6870 in compared to 16.40 mm / 0.6457 in on the Bach 2½C — a difference of 1.05 mm / 0.0413 in. A wider cup generally produces a fuller, darker tone but requires more air support.

      Cup Depth

      The Marcinkiewicz 1 1/4C (Endorsee) has a deep cup while the Bach 2½C has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.

      Throat Diameter

      The Marcinkiewicz 1 1/4C (Endorsee) has a wider throat (3.73 mm / 0.1469 in vs 3.66 mm / 0.1441 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 Bach 2½C details Marcinkiewicz 1 1/4C (Endorsee) details Bach 2½C equivalents Marcinkiewicz 1 1/4C (Endorsee) equivalents