Bach 30E vs Schilke S-H
The Schilke S-H has a wider cup diameter, the Schilke S-H features a deeper cup, the Bach 30E has a larger throat opening.
Cup Diameter
The Schilke S-H has a cup diameter of 31.84 mm / 1.2535 in compared to 30.00 mm / 1.1811 in on the Bach 30E — a difference of 1.84 mm / 0.0724 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Schilke S-H has a medium cup while the Bach 30E has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bach 30E has a wider throat (8.33 mm / 0.3280 in vs 7.49 mm / 0.2949 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.