Bach 8½A vs Marcinkiewicz 1 1/4C (Standard)
The Marcinkiewicz 1 1/4C (Standard) has a wider cup diameter, the Bach 8½A features a deeper cup, the Marcinkiewicz 1 1/4C (Standard) has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Bach 8½A
• Cornet
Cup diameter16.10 mm / 0.6339 in
vs
Mouthpiece B
Marcinkiewicz 1 1/4C (Standard)
• Cornet
Cup diameter17.45 mm / 0.6870 in
Best suited for
Orchestral playing — large cup for full, dark tone
Cup Diameter
The Marcinkiewicz 1 1/4C (Standard) has a cup diameter of 17.45 mm / 0.6870 in compared to 16.10 mm / 0.6339 in on the Bach 8½A — a difference of 1.35 mm / 0.0531 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.