Marcinkiewicz CH BS FL vs Yamaha FH-14F4
The Yamaha FH-14F4 has a wider cup diameter, the Yamaha FH-14F4 features a deeper cup, the Marcinkiewicz CH BS FL has a larger throat opening.
Cup Diameter
The Yamaha FH-14F4 has a cup diameter of 16.76 mm / 0.6598 in compared to 16.74 mm / 0.6591 in on the Marcinkiewicz CH BS FL — a difference of 0.02 mm / 0.0008 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Yamaha FH-14F4 has a medium cup while the Marcinkiewicz CH BS FL 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 BS FL has a wider throat (4.39 mm / 0.1728 in vs 4.30 mm / 0.1693 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.