Marcinkiewicz CH 1.5G vs Marcinkiewicz CH 5J BS
The Marcinkiewicz CH 1.5G has a wider cup diameter, the Marcinkiewicz CH 5J BS features a deeper cup, the Marcinkiewicz CH 1.5G has a larger throat opening.
Cup Diameter
The Marcinkiewicz CH 1.5G has a cup diameter of 27.84 mm / 1.0961 in compared to 25.55 mm / 1.0059 in on the Marcinkiewicz CH 5J BS — a difference of 2.29 mm / 0.0902 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Marcinkiewicz CH 5J BS has a deep cup while the Marcinkiewicz CH 1.5G has a very shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Marcinkiewicz CH 1.5G has a wider throat (7.14 mm / 0.2811 in vs 7.04 mm / 0.2772 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.