Bach 4GB vs Bruno Tilz 215-3 B
The Bruno Tilz 215-3 B has a wider cup diameter, the Bach 4GB features a deeper cup, the Bruno Tilz 215-3 B has a larger throat opening.
Cup Diameter
The Bruno Tilz 215-3 B has a cup diameter of 28.00 mm compared to 26.00 mm on the Bach 4GB — a difference of +2.00 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 4GB has a very deep cup while the Bruno Tilz 215-3 B has a deep cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Bruno Tilz 215-3 B has a wider throat (7.40 mm vs 7.01 mm). 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 4GB with others
Compare Bruno Tilz 215-3 B with others
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