Denis Wick 4B vs Kelly SCREAMER
The Denis Wick 4B has a wider cup diameter, the Denis Wick 4B features a deeper cup, the Denis Wick 4B has a larger throat opening.
Cup Diameter
The Denis Wick 4B has a cup diameter of 16.50 mm / 0.6496 in compared to 16.00 mm / 0.6299 in on the Kelly SCREAMER — a difference of 0.50 mm / 0.0197 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Denis Wick 4B has a medium cup while the Kelly SCREAMER has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Denis Wick 4B has a wider throat (4.27 mm / 0.1681 in vs 3.56 mm / 0.1402 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
Material
The Denis Wick 4B is described as unspecified, and the Kelly SCREAMER as Lexan polycarbonate. Material affects mass, warmth, and how quickly the piece responds.
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.