Denis Wick 4.5AL vs Schilke 51D
The Denis Wick 4.5AL has a wider cup diameter, the Denis Wick 4.5AL features a deeper cup, the Denis Wick 4.5AL has a larger throat opening.
Cup Diameter
The Denis Wick 4.5AL has a cup diameter of 25.85 mm compared to 25.55 mm on the Schilke 51D — a difference of +0.30 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick 4.5AL has a very deep cup while the Schilke 51D has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Denis Wick 4.5AL has a wider throat (7.24 mm vs 7.04 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 Denis Wick 4.5AL with others
Compare Schilke 51D with others
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