Bach 1 vs Marcinkiewicz E2J. Michelou
the Bach 1 features a deeper cup, the Marcinkiewicz E2J. Michelou has a larger throat opening.
Mouthpiece A
Bach 1
• Trumpet
Cup diameter17.50 mm / 0.6890 in
Cup depthVery deep
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Marcinkiewicz E2J. Michelou
• Trumpet
Cup diameter17.50 mm / 0.6890 in
Cup depthShallow
Rim width—
Throat diameter3.78 mm / 0.1488 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 17.50 mm / 0.6890 in.
Cup Depth
The Bach 1 has a very deep cup while the Marcinkiewicz E2J. Michelou has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Marcinkiewicz E2J. Michelou has a wider throat (3.78 mm / 0.1488 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.