Bach 12E vs Marcinkiewicz 7G
The Marcinkiewicz 7G has a wider cup diameter, the Marcinkiewicz 7G features a deeper cup, the Marcinkiewicz 7G has a larger throat opening.
Cup Diameter
The Marcinkiewicz 7G has a cup diameter of 25.78 mm / 1.0150 in compared to 24.50 mm / 0.9646 in on the Bach 12E — a difference of 1.28 mm / 0.0504 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Marcinkiewicz 7G has a medium cup while the Bach 12E has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Marcinkiewicz 7G has a wider throat (6.63 mm / 0.2610 in vs 5.85 mm / 0.2303 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.
Compare Bach 12E with others
Compare Marcinkiewicz 7G with others
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