Bach 5C vs Yamaha TR-SHEW-LEAD
The Yamaha TR-SHEW-LEAD has a wider cup diameter, the Bach 5C features a deeper cup, the Bach 5C has a larger throat opening.
Cup Diameter
The Yamaha TR-SHEW-LEAD has a cup diameter of 16.54 mm / 0.6512 in compared to 16.25 mm / 0.6398 in on the Bach 5C — a difference of 0.29 mm / 0.0114 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 5C has a medium cup while the Yamaha TR-SHEW-LEAD has a very shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach 5C has a wider throat (3.66 mm / 0.1441 in vs 3.56 mm / 0.1402 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.